Error getting value from 'InnerHtml' on 'System.Web.UI.HtmlControls.HtmlForm'

[yenkarthi]

I am converting Ext code from 1.6 to 2.5.3 version.

When I have double click in my grid record then it will open and retreive existing record to display on the multi select control in the form panel control.

I am able to see all records but I got pop up and am getting error like this

Error getting value from 'InnerHtml' on 'System.Web.UI.HtmlControls.HtmlForm'

Please find the below error screen



Multiselect code behind code

private void LoadStaffProf_DegreeProgrammeData(string sStaffProf_Id)
        {
            //Set the where clause for selection
            string sWhereClause = "";
            string sSearchUserId = "";
            if (!string.IsNullOrEmpty(sStaffProf_Id))
            {
                sWhereClause = " WHERE A.StaffProf_Id = @StaffProf_Id ";
            }
            else
            {
                sWhereClause = " WHERE C.Email = @UserID ";
                sSearchUserId = Convert.ToString(Session["UserID"]);
            }

            //lblAuthorisedTrainingOrg.Hidden = True
            cbxAuthorisedTrainingOrg.Hidden = true;
            SqlConnection sqlconnDegreeProgramme = new SqlConnection(ConfigurationManager.AppSettings["SQL_CONNECTION_STR"]);
            try
            {
                //(1) Open Connection to database
                sqlconnDegreeProgramme.Open();

                //(2) Get Programme_Id
                SqlCommand sqlcmdDegreeProgramme = new SqlCommand();
                sqlcmdDegreeProgramme = new SqlCommand("SELECT A.Programme_Id,A.Id " + "FROM dbo.StaffProf_DegreeProgramme A " + "INNER JOIN dbo.StaffProf B " + "ON A.StaffProf_Id = B.Id " + "INNER JOIN dbo.StaffProf_Staff C " + "ON A.StaffProf_Id = C.StaffProf_Id " + sWhereClause, sqlconnDegreeProgramme);

                var _with10 = sqlcmdDegreeProgramme;
                _with10.CommandTimeout = Convert.ToInt32(Main.SQL_TIMEOUT);
                if (!string.IsNullOrEmpty(sStaffProf_Id))
                {
                    _with10.Parameters.Add(new SqlParameter("@StaffProf_Id", SqlDbType.BigInt, 8, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, sStaffProf_Id));
                }
                else
                {
                    _with10.Parameters.Add(new SqlParameter("@UserID", SqlDbType.VarChar, 100, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, sSearchUserId));
                }

                mlselDegreeProgramme.SelectedItems.Clear();
                SqlDataReader sqldrDegreeProgramme = sqlcmdDegreeProgramme.ExecuteReader();
                var _with11 = sqldrDegreeProgramme;
                if (_with11.HasRows)
                {
                    while (_with11.Read())
                    {
                        mlselDegreeProgramme.SelectedItems.Add(new Ext.Net.SelectedListItem(Convert.ToString(_with11.GetInt64(0))));
                        if (_with11.GetInt64(0) == ACCOUNTANCY_DEGREE_ID)
                        {
                           cbxAuthorisedTrainingOrg.Hidden = false;
                        }
                    }
                }
                //Must call this method or else the multiselect will not show
                mlselDegreeProgramme.UpdateSelectedItems();
                sqldrDegreeProgramme.Close();
                sqlcmdDegreeProgramme.Dispose();
            }
            catch (SqlException ex)
            {
                objMain.ErrorMsgBox("Error!", ex.Message);
            }
            catch (Exception ex)
            {
                objMain.ErrorMsgBox("Error!", ex.Message);
            }
            finally
            {
                sqlconnDegreeProgramme.Close();
            }

            //Call LoadStaffProf_DegreeProgrammeAuditData(sStaffProf_Id)
        }

Error throwing in this line

mlselDegreeProgramme.SelectedItems.Add(new Ext.Net.SelectedListItem(Convert.ToString(_with11. GetInt64(0))));

Code Error screens



Please assist me.

[Daniil]

Hi @yenkarthi,

That sounds like a bug, but I cannot determine anything for sure just basing on the description. Could you, please, provide a full test case to reproduce the Exception (without the dependency on a database)?

[yenkarthi]

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TestMultiSelect.aspx.cs" Inherits="JobsPortal.TestMultiSelect" %>


<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
 
<script runat="server">
    protected void SelectAll(object sender, DirectEventArgs e)
    {
        for (int i = 0; i < MultiSelect1.Items.Count; i++) {
          MultiSelect1.SelectedItems.Add(new SelectedListItem(MultiSelect1.Items[i].Value));  
        }
  
        MultiSelect1.UpdateSelectedItems();
        
    }
    
    
</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 id="Head1" runat="server">
    <title>Ext.Net Example</title>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server" />


    <ext:MultiSelect ID="MultiSelect1" runat="server">
        <Items>
            <ext:ListItem Text="Item 1" Value="1" />
            <ext:ListItem Text="Item 2" Value="2" />
            <ext:ListItem Text="Item 3" Value="3" />
        </Items>
   <ListConfig ID="ListConfig1" runat="server">
       <Listeners>
                                                           
         <ItemClick Handler="if (App.MultiSelect1.getValue().indexOf('1')) { 
         alert(App.MultiSelect1.getValue().indexOf('1'));
         #{lblAuthorisedTrainingOrg}.show();
         } else {
         alert('error values -1');
         #{lblAuthorisedTrainingOrg}.hide();
         };" />
         </Listeners>
         </ListConfig>
    </ext:MultiSelect>
    <ext:Button ID="Button1" runat="server" Text="Select all Server Side">
        <DirectEvents>
            <Click OnEvent="SelectAll" />
        </DirectEvents>
    </ext:Button>
       </ext:Button>
        <ext:Button ID="btnClearAll" runat="server" StandOut="True" Text="Clear All">
        <Listeners>
        <Click Handler="#{MultiSelect1}.clear();
        #{lblAuthorisedTrainingOrg}.hide(); " />
        </Listeners>
       </ext:Button>
        <ext:Label ID="lblAuthorisedTrainingOrg" runat="server" Text="Test" Hidden="true"></ext:Label>
      </form>
</body>
</html>

[Daniil]

Thank you.

Please replace SelectedListItem with Ext.Net.ListItem.