Hi All,

When i open the create form for the first time the page will have one scroll :

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but when validation messages of the controls appears another scroll appear like in the following screenshot :

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<%@ Page Language="C#" AutoEventWireup="true"
    Culture="auto" UICulture="auto" EnableViewState="true" meta:resourcekey="PageResource1" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <style type="text/css">
        .x-toolbar td, .x-toolbar span, .x-toolbar input, .x-toolbar div, .x-toolbar select, .x-toolbar label
        {
            font-weight: bold;
        }
    </style>
    <script type="text/javascript">

        var SelectRecord = function (command, record) {
            gpUsers.getSelectionModel().selectRow(-1 - record.id);
        };

        // method use to show create new user panel and hide users list panel
        function ShowCreateUserPnl() {
            pnlUsersList.hide();
            pnlCreateUser.show();
        }
        // method use to show users list panel and hide create new user panel
        function ShowUsersPnl() {
            pnlUsersList.show();
            pnlCreateUser.hide();
        }

        // method check if there is a selected user before fire the edit click   
        var BeforeEdit = function (e) {
            if (gpUsers.getRowsValues({ selectedOnly: true }).length == 0) {
                Ext.Msg.alert(MsgAlert, MsgSelectUserForEdit);
                MsgLeftFixForIE();
                return false;
            }
            else {
                ShowCreateUserPnl();
            }
        };

        // method check if there is a selected user before fire the delete click   
        var BeforeDelete = function (e) {
            if (gpUsers.getRowsValues({ selectedOnly: true }).length == 0) {

                Ext.Msg.alert(MsgAlert, MsgSelectUserForDelete);
                MsgLeftFixForIE();
                return false;
            }
            else {
                var bResult = confirm(MsgUserDeleteConfirm);
                return bResult;
            }
        };

        // method check if there is a selected user before fire the reset password click   
        var BeforeResetPassword = function (e) {
            if (gpUsers.getRowsValues({ selectedOnly: true }).length == 0) {

                Ext.Msg.alert(MsgAlert, MsgSelectUserForResetPassword);
                MsgLeftFixForIE();
                return false;
            }
            else {
                var bResult = confirm(MsgUserResetPasswordConfirm);
                return bResult;
            }
        };

        function CheckSelectedRowCount() {
            if (Ext.encode(gpUsers.getRowsValues({ selectedOnly: true })[0]) != 'null') {
                return Ext.encode(gpUsers.getRowsValues({ selectedOnly: true })[0].UserId);
            }
            else {
                return '-99';
            }
        }

        function CheckSelectedRow() {
            if (Ext.encode(gpUsers.getRowsValues({ selectedOnly: true })[0]) != 'null') {
                return Ext.encode(gpUsers.getRowsValues({ selectedOnly: true })[0].Active);
            }
            else {
                return 'false';
            }
        }

    </script>
    
    <script runat = "server">
    
        

        

        #region Handlers >>
        #region Handler :: Page Load
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
               
            }
        }
        #endregion
        #region Handler :: Refresh Data
        protected void strUsers_RefreshData(object sender, StoreRefreshDataEventArgs e)
        {
           
        }
        #endregion
        #region Handler :: btnDeleteUser_Click
        protected void btnDeleteUser_Click(object sender, DirectEventArgs e)
        {
            
        }
        #endregion
        #region Handler :: btnSave_Click
        protected void btnSave_Click(object sender, DirectEventArgs e)
        {
           
        }
        #endregion
        #region Handler :: btnEditUser_Click
        protected void btnEditUser_Click(object sender, DirectEventArgs e)
        {
           
        }
        #endregion
        #region Handler :: btnUserAdd_Click
        protected void btnUserAdd_Click(object sender, EventArgs e)
        {
            
        }
        #endregion
        #region Handler :: btnCancel_Click
        protected void btnCancel_Click(object sender, DirectEventArgs e)
        {
           
        }
        #endregion
        #region Handler :: btnResetPassword_Click
        protected void btnResetPassword_Click(object sender, DirectEventArgs e)
        {
          
        }
        #endregion
        #region Handler :: btnActivate_Click
        protected void btnActivate_Click(object sender, DirectEventArgs e)
        {
           
        }
        #endregion
        #region Handler :: btnDeActivate_Click
        protected void btnDeActivate_Click(object sender, DirectEventArgs e)
        {
            
        }
        #endregion
        #region Handler :: gvRowSelection_Selected
        protected void gvRowSelection_Selected(object sender, DirectEventArgs e)
        {
           
        }
        #endregion
        #endregion

        #region Methods >>
        #region Method :: Delete User
        /// <summary>
        /// method that delete user
        /// </summary>
        public void vDeleteUser()
        {
           
        }
        #endregion
        #region Method :: Get Single User
        /// <summary>
        /// method that get a single user for edit
        /// </summary>
        public void vGetSingleUser()
        {
            
        }
        #endregion
        #region Method :: Clear Form
        /// <summary>
        /// method that clear the form
        /// </summary>
        public void vClearForm()
        {
          
        }
        #endregion
        #region Method :: Set Column Header
        /// <summary>
        /// Method that set the columns header
        /// </summary>
        private void vSetColumnsHeader()
        {
           
        }
        #endregion
        #region Method :: Set Buttons Status 
        /// <summary>
        /// method that set the buttons visiability status
        /// </summary>
        private void vSetButtonsStatus()
        {
           
        }
        #endregion
        #endregion
        
    </script>
    
</head>
<body>
    <form id="form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server" LicenseKey="" StopIDModeInheritance="False"
        Locale="en-US" />
    <ext:Viewport ID="vpUsersContainer" runat="server" AutoScroll="true" StopIDModeInheritance="False">
        <Items>
            <ext:ColumnLayout ID="ColumnLayout1" runat="server" FitHeight="true" meta:resourcekey="ColumnLayout1Resource1">
                <Columns>
                    <ext:LayoutColumn ColumnWidth="1">
                        <ext:Panel ID="pnlMainPanel" runat="server" Layout="FitLayout" AutoScroll="true"
                            Border="false">
                            <TopBar>
                                <ext:Toolbar ID="Toolbar2" runat="server">
                                    <Items>
                                        <ext:Label ID="lblTitle" runat="server" StyleSpec="color:#15428B;" Cls="Label">
                                        </ext:Label>
                                        <ext:ToolbarFill ID="ToolbarFill21" runat="server" meta:resourcekey="ToolbarFill1Resource1">
                                        </ext:ToolbarFill>
                                        <ext:Button ID="btnUserAdd" runat="server" Text="Create New" Icon="UserAdd" meta:resourcekey="btnUserAddResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnUserAdd_Click" ViewStateMode="Enabled">
                                                </Click>
                                            </DirectEvents>
                                            <Listeners>
                                                <Click Fn="ShowCreateUserPnl" />
                                            </Listeners>
                                        </ext:Button>
                                        <ext:Button ID="btnEditUser" runat="server" Text="Edit" Icon="UserEdit" meta:resourcekey="btnEditUserResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnEditUser_Click" ViewStateMode="Enabled" Before="BeforeEdit" Complete="MsgLeftFixForIE">
                                                    <EventMask ShowMask="true" />
                                                    <ExtraParams>
                                                        <ext:Parameter Name="UserId" Value="CheckSelectedRowCount()" Mode="Raw" />
                                                    </ExtraParams>
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button ID="btnDeleteUser" runat="server" Text="Delete" Icon="UserDelete" meta:resourcekey="btnDeleteUserResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnDeleteUser_Click" ViewStateMode="Enabled" Before="BeforeDelete"
                                                    Complete="MsgLeftFixForIE">
                                                    <%--<Confirmation ConfirmRequest="true" Cancel = "return false;"  Title="Alert"  BeforeConfirm="config.confirmation.message = 'Are You Sure That You Want To Delete User?'" />--%>
                                                    <ExtraParams>
                                                        <ext:Parameter Name="UserId" Value="CheckSelectedRowCount()" Mode="Raw" />
                                                    </ExtraParams>
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button ID="btnSynchronize" runat="server" Text="Synchronize" Icon="ArrowRefresh"
                                            meta:resourcekey="Button4Resource1">
                                        </ext:Button>
                                        <ext:Button ID="btnResetPassword" runat="server" Text="Reset Password" Icon="ArrowUndo"
                                            meta:resourcekey="btnResetPasswordResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnResetPassword_Click" ViewStateMode="Enabled" Before="BeforeResetPassword"
                                                    Complete="MsgLeftFixForIE">
                                                    <ExtraParams>
                                                        <ext:Parameter Name="UserId" Value="CheckSelectedRowCount()" Mode="Raw" />
                                                    </ExtraParams>
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button ID="btnActivate" runat="server" Text="Activate" Icon="KeyStart" meta:resourcekey="btnActivateResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnActivate_Click" ViewStateMode="Enabled" Complete="MsgLeftFixForIE">
                                                    <ExtraParams>
                                                        <ext:Parameter Name="UserId" Value="CheckSelectedRowCount()" Mode="Raw" />
                                                    </ExtraParams>
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button ID="btnDeActivate" runat="server" Text="DeActivate" Icon="KeyStop" meta:resourcekey="btnDeActivateResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnDeActivate_Click" ViewStateMode="Enabled" Complete="MsgLeftFixForIE">
                                                    <ExtraParams>
                                                        <ext:Parameter Name="UserId" Value="CheckSelectedRowCount()" Mode="Raw" />
                                                    </ExtraParams>
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button Icon="Add" ID="btnSave" runat="server" Text="Save" meta:resourcekey="btnSaveResource1">
                                            <Listeners>
                                                <Click Handler="if (#{FormPanel1}.getForm().isValid()) {return true;}else{Ext.Msg.show({icon: Ext.MessageBox.ERROR, msg: MsgFormError, buttons:Ext.Msg.OK});MsgLeftFixForIE();return false;}" />
                                            </Listeners>
                                            <DirectEvents>
                                                <Click OnEvent="btnSave_Click" ViewStateMode="Enabled" Complete="MsgLeftFixForIE">
                                                </Click>
                                            </DirectEvents>
                                        </ext:Button>
                                        <ext:Button Icon="Cancel" ID="btnCancel" runat="server" Text="Cancel" meta:resourcekey="btnCancelResource1">
                                            <DirectEvents>
                                                <Click OnEvent="btnCancel_Click" ViewStateMode="Enabled">
                                                </Click>
                                            </DirectEvents>
                                            <Listeners>
                                                <Click Fn="ShowUsersPnl" />
                                            </Listeners>
                                        </ext:Button>
                                    </Items>
                                </ext:Toolbar>
                            </TopBar>
                            <Items>
                                <ext:Panel ID="pnlUsersList" runat="server" ActiveTabIndex="0" StopIDModeInheritance="False"
                                    Layout="FitLayout" AutoScroll="true">
                                    <Items>
                                        <ext:GridPanel ID="gpUsers" runat="server" AutoWidth="True" AutoHeight="true" SelectionSavingBuffer="10"
                                            StopIDModeInheritance="False" meta:resourcekey="gpUsersResource1" StripeRows="true">
                                            <SelectionModel>
                                                <ext:RowSelectionModel ID="gvRowSelection" Enabled="true" SingleSelect="true" meta:resourcekey="gvRowSelectionResource1">
                                                    <DirectEvents>
                                                        <SelectionChange OnEvent="gvRowSelection_Selected">
                                                            <ExtraParams>
                                                                <ext:Parameter Name="Active" Value="CheckSelectedRow()" Mode="Raw" />
                                                            </ExtraParams>
                                                        </SelectionChange>
                                                    </DirectEvents>
                                                </ext:RowSelectionModel>
                                            </SelectionModel>
                                            <Store>
                                                <ext:Store ID="strUsers" runat="server" RemoteSort="true" OnRefreshData="strUsers_RefreshData"
                                                    meta:resourcekey="Store1Resource1">
                                                    <Proxy>
                                                        <ext:PageProxy />
                                                    </Proxy>
                                                    <Reader>
                                                        <ext:JsonReader IDProperty="Id">
                                                            <Fields>
                                                                <ext:RecordField Name="UserId" Type="Int" />
                                                                <ext:RecordField Name="UserName" Type="String" />
                                                                <ext:RecordField Name="FullName" Type="String" />
                                                                <ext:RecordField Name="EmpNo" Type="Int" />
                                                                <ext:RecordField Name="Active" Type="Boolean" />
                                                            </Fields>
                                                        </ext:JsonReader>
                                                    </Reader>
                                                    <BaseParams>
                                                        <ext:Parameter Name="start" Value="0" Mode="Raw" />
                                                        <ext:Parameter Name="limit" Value="10" Mode="Raw" />
                                                        <ext:Parameter Name="sort" Value="" />
                                                        <ext:Parameter Name="dir" Value="" />
                                                    </BaseParams>
                                                    <SortInfo Field="UserId" Direction="ASC" />
                                                </ext:Store>
                                            </Store>
                                            <ColumnModel ID="ColumnModel1" runat="server" Width="100%">
                                                <Columns>
                                                    <ext:Column Header="" DataIndex="" Width="30">
                                                        <Commands>
                                                            <ext:ImageCommand Icon="User" CommandName="Select">
                                                            </ext:ImageCommand>
                                                        </Commands>
                                                    </ext:Column>
                                                    <ext:Column Header="Username" DataIndex="UserName" Width="250">
                                                    </ext:Column>
                                                    <ext:Column Header="Full Name" DataIndex="FullName" Width="300" />
                                                    <ext:Column Header="Emp No" DataIndex="EmpNo">
                                                    </ext:Column>
                                                    <ext:Column Header="Active" DataIndex="Active" Align="Center">
                                                        <Renderer Handler="return (value) ? DrawYesImage(): DrawNoImage();" />
                                                    </ext:Column>
                                                </Columns>
                                            </ColumnModel>
                                            <LoadMask ShowMask="true" />
                                            <Plugins>
                                                <ext:GridFilters runat="server" ID="GridFilters1">
                                                    <Filters>
                                                        <ext:NumericFilter DataIndex="EmpNo" meta:resourcekey="NumericFilterResource1" />
                                                        <ext:StringFilter DataIndex="UserName" />
                                                        <ext:StringFilter DataIndex="FullName" />
                                                        <ext:BooleanFilter DataIndex="Active" meta:resourcekey="BooleanFilterResource1" />
                                                    </Filters>
                                                </ext:GridFilters>
                                            </Plugins>
                                            <BottomBar>
                                                <ext:PagingToolbar ID="PagingToolbar1" runat="server" BeforePageText="Page" PageSize="10"
                                                    meta:resourcekey="PagingToolbar1Resource1" />
                                            </BottomBar>
                                            <Listeners>
                                                <Command Handler="SelectRecord(command, record);" />
                                            </Listeners>
                                        </ext:GridPanel>
                                    </Items>
                                </ext:Panel>
                                <ext:Panel ID="pnlCreateUser" runat="server" ActiveTabIndex="0" 
                                    Layout="FitLayout" Hidden="True" StopIDModeInheritance="False" Border="false">
                                    <Items>
                                        <ext:FormPanel ID="FormPanel1" runat="server" MonitorValid="true" MonitorResize="true"
                                            Padding="5" AutoWidth="true" Layout="Column" meta:resourcekey="FormPanel1Resource1">
                                            <Items>
                                                <ext:Panel ID="Panel1" runat="server" Border="false" Header="false" ColumnWidth=".5" MonitorResize="true" AutoScroll="true"
                                                    Layout="Form" meta:resourcekey="Panel1Resource2" LabelAlign="Top">
                                                    <Defaults>
                                                        <ext:Parameter Name="MsgTarget" Value="under" />
                                                    </Defaults>
                                                    <Items>
                                                        <ext:TextField ID="txtUsername" runat="server" FieldLabel="Username" Width="500" Height="200"
                                                            AllowBlank="false" MsgTarget="Under" meta:resourcekey="txtUsernameResource1" />
                                                        <ext:TextField ID="txtEmpNo" runat="server" FieldLabel="Emp No." Width="500" meta:resourcekey="txtEmpNoResource1"
                                                            AllowBlank="false" />
                                                        <ext:TextField ID="txtFullName" runat="server" FieldLabel="Full Name" Width="500"  Height="200"
                                                            AllowBlank="false" meta:resourcekey="txtFullNameResource1" />
                                                        <ext:TextField ID="txtInternalEmail" runat="server" FieldLabel="Internal Email" Width="500"  Height="200"
                                                            AllowBlank="false" Vtype="email" meta:resourcekey="txtInternalEmailResource1"
                                                            MaxLength="40" />
                                                        <ext:TextField ID="txtExternalEmail" runat="server" FieldLabel="External Email" Width="500"
                                                            AllowBlank="false" Vtype="email" meta:resourcekey="txtExternalEmailResource1"
                                                            MaxLength="40">
                                                        </ext:TextField>
                                                        <ext:TextField ID="txtPassword" InputType="Password" runat="server" FieldLabel="Password"
                                                            Width="500" meta:resourcekey="txtPasswordResource1" />
                                                        <ext:TextField ID="txtConfirmPassword" Vtype="password" InputType="Password" runat="server"
                                                            FieldLabel="Confirm Password" Width="500" meta:resourcekey="txtConfirmPasswordResource1">
                                                            <CustomConfig>
                                                                <ext:ConfigItem Name="initialPassField" Value="#{txtPassword}" Mode="Value" />
                                                            </CustomConfig>
                                                        </ext:TextField>
                                                        <ext:RadioGroup ID="rgStatus" runat="server" Width="400" CausesValidation="false"
                                                            FieldLabel="User Status" AutoRender="False" StopIDModeInheritance="False" meta:resourcekey="rgUserStatus">
                                                            <Items>
                                                                <ext:Radio ID="rActive" runat="server" BoxLabel="<%$ Resources:Resource, rActive  %>"
                                                                    AutoRender="False" StopIDModeInheritance="False" Checked="true">
                                                                </ext:Radio>
                                                                <ext:Radio ID="rInactive" runat="server" BoxLabel="<%$ Resources:Resource, rInActive  %>"
                                                                    AutoRender="False" StopIDModeInheritance="False">
                                                                </ext:Radio>
                                                            </Items>
                                                        </ext:RadioGroup>
                                                        
                                                    </Items>
                                                </ext:Panel>
                                            </Items>
                                            <Buttons>
                                            </Buttons>
                                            <BottomBar>
                                                <ext:StatusBar ID="StatusBar1" runat="server" Height="25" meta:resourcekey="StatusBar1Resource1">
                                                </ext:StatusBar>
                                            </BottomBar>
                                            <Listeners>
                                                <ClientValidation Handler="this.getBottomToolbar().setStatus({text : valid ? MsgValidForm : MsgFormError, iconCls: valid ? 'icon-accept' : 'icon-exclamation'});" />
                                            </Listeners>
                                        </ext:FormPanel>
                                    </Items>
                                </ext:Panel>
                            </Items>
                        </ext:Panel>
                    </ext:LayoutColumn>
                </Columns>
            </ext:ColumnLayout>
        </Items>
    </ext:Viewport>
    </form>
</body>
</html>