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Lock row for block another user to edit ?

  1. #1
    Nov 28, 2011, 4:53 AM

    Lock row for block another user to edit ?

    First, thank you for "Ext.net".

    I have a GridPanel. When user click on 'view' button on each row. It open 'Form' that has a
    'edit' button. When user click on edit button then they can modify any field in form.

    I need a program lock record or row for block another user to edit form at the same time.
    I tried.

    var editForm = function() {
  if(GridPanel1.selModel.isLocked()){
     alert("Record has been locked by another user!");
     return true;
  }else {
     GridPanel1.getSelectionModel().lock();
     DeleteButton.show();
     SaveButton.show();
     CancelButton.show();
     FormPanel1.cascade(enableForm, false, true);
     this.hide();  // this --> editButton 
  }
}
    but GridPanel1 has locked all row (I need lock on one row)

    Thank agian and sorry for poor English.
  2. #2
    Nov 28, 2011, 5:45 AM
    Hi,

    You can lock a record on its "record" level.
    record.data.locked = true/false;
  3. #3
    Nov 28, 2011, 7:35 AM

    Hi,

    I add filed "RecordLocked" to table. and use

    var editForm = function(){
  if (GridPanel1.selModel.getSelected().data.RecordLocked) {
     alert('Record has been locked = true');
     return true;
  } else {
     alert('Record has been locked = false');
     // need some command update table to set value of field 'RecordLocked' = true 
  }
}
    Could you please show me.

    Thank a lot
  4. #4
    Nov 28, 2011, 7:46 AM
    Where does you lock a record?

    And is a row selected when you click on the "Edit" button?

    Could you please show me.
    Not sure how your scenario looks and what I should demonstrate.

    Please clarify the following:
    Quote Originally Posted by Aod47 View Post
    I need a program lock record or row for block another user to edit form at the same time.
    What is another user? A common "another user" when an application is accessed via Web?

    Then you should lock a record on data layer (database, etc.).
  5. #5
    Nov 28, 2011, 11:24 AM

    Sir,

    another user -- I mean 'admin user' who have right to edit form/record.


    I place demo page at http://www.k-library.net/ccg/accessgrid.aspx

    and this is source http://www.k-library.net/ccg/accessgrid.aspx.txt

    thank for your help.
    Last edited by Aod47; Nov 28, 2011 at 11:29 AM.
  6. #6
    Nov 28, 2011, 12:08 PM
    Hope the following example helps you.

    Example
    <%@ Page Language="C#" %>
 
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!X.IsAjaxRequest)
        {
            this.Store1.DataSource = new object[] 
            { 
                new object[] { "not locked" },
                new object[] { "locked" },
                new object[] { "not locked" }
            };
            this.Store1.DataBind();
        }
    }
</script>
<!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 runat="server">
    <title>Ext.Net Example</title>
</head>
<body>
    <form runat="server">
        <ext:ResourceManager runat="server" />
        <ext:GridPanel ID="GridPanel1" runat="server" AutoHeight="true">
            <Store>
                <ext:Store ID="Store1" runat="server">
                    <Reader>
                        <ext:ArrayReader>
                            <Fields>
                                <ext:RecordField Name="test" />
                                <ext:RecordField Name="locked" Type="Boolean" DefaultValue="false" />
                            </Fields>
                        </ext:ArrayReader>
                    </Reader>
                </ext:Store>
            </Store>
            <ColumnModel runat="server">
                <Columns>
                    <ext:Column Header="Editable" DataIndex="test">
                        <Editor>
                            <ext:TextField runat="server" />
                        </Editor>
                    </ext:Column>
                    <ext:Column Header="Locked" DataIndex="locked" />
                    <ext:ImageCommandColumn>
                        <Commands>
                            <ext:ImageCommand 
                                CommandName="toggleLock" 
                                Icon="ShapeShadowToggle" 
                                Text="Toggle lock" />
                        </Commands>
                    </ext:ImageCommandColumn>
                </Columns>
            </ColumnModel>
            <Listeners>
                <Command Handler="if (command === 'toggleLock') {
                                      record.set('locked', !record.data.locked);
                                  }" />
                <BeforeEdit Handler="return !e.record.data.locked;" />
            </Listeners>
        </ext:GridPanel>
    </form>
</body>
</html>
  7. #7
    Nov 28, 2011, 2:43 PM

    Thank you Sir,

    I will try to adapt.


    and where can I read about "record.set" ,"record.data"
  8. #8
    Nov 28, 2011, 2:44 PM
    Please see:
    http://docs.sencha.com/ext-js/3-4/#!...xt.data.Record

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