RadTextBox issue(inside RadGrid) in IE 8

[Ramesh kumar Kuppusamy]

Hi,

      I have a RadTextBox inside my RadGridTemplate Column , The RadText box is not maintaining the value , this Problem occurs in
IE 8 , in my Vista machine ... Other browsers could able retain the values ..

   Please Help me to retain values ,when browsed in IE 8 . .

i have attached sample code and screen shots ...

Note: - 
   In my IE 8 browser , when i change to Compatability Mode , radtextBox inside radgrid retains values , but not in Normal mode ...

Imports System.Data
Imports Telerik.Web.UI

Partial Class Filter
    Inherits System.Web.UI.Page

    Private m_objDTColumns As New DataTable
    Private m_objDTColumns1 As New DataTable
    Private m_objDTFilter As New DataTable
    Private m_strReturn As String = String.Empty
    Private l_intRowCount As Integer = 0
    Private l_strColumns() As String
    Private arr As New ArrayList



    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load


        m_objDTFilter.Columns.Add("Operator")
        m_objDTFilter.Columns.Add("Value")
        m_objDTFilter.Columns.Add("Logical")


        If Not Page.IsPostBack Then
            m_objDTFilter.Rows.Add()
            gvFilter.DataSource = m_objDTFilter
            gvFilter.DataBind()
        End If
    End Sub

    Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        FilterAddRow()
    End Sub

    Private Sub FilterAddRow()

        Dim gridRows As GridItemCollection = gvFilter.Items
        For Each data As GridDataItem In gridRows


            Dim l_objDDLOperator As RadComboBox = DirectCast(data.FindControl("ddlOperator"), RadComboBox)
            Dim l_objDDLLogical As RadComboBox = DirectCast(data.FindControl("ddlLogical"), RadComboBox)
            Dim l_objTxtValue As RadTextBox = DirectCast(data.FindControl("txtValue"), RadTextBox)

            m_objDTFilter.Rows.Add(New Object() {l_objDDLOperator.SelectedValue.ToString(), l_objTxtValue.Text, l_objDDLLogical.SelectedValue.ToString})
        Next


        m_objDTFilter.Rows.Add()

        gvFilter.DataSource = m_objDTFilter
        gvFilter.Rebind()

    End Sub

    Protected Sub gvFilter_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles gvFilter.ItemCreated


    End Sub
    Protected Sub gvFilter_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles gvFilter.ItemDataBound

        Dim l_intRCnt As Integer = e.Item.ItemIndex
        Dim l_objDDLColumnName As RadComboBox
        Dim l_objDDLOperator As RadComboBox
        Dim l_objDDLLogical As RadComboBox
        Dim l_objTxtValue As RadTextBox


        Dim l_objDDLRowID As Label
        Dim l_intRIndex As Integer
        If (e.Item.ItemType = GridItemType.Item Or e.Item.ItemType = GridItemType.AlternatingItem) Then
            e.Item.Attributes.Add("onclick", "javascript:GetRowID('" + e.Item.ItemIndex.ToString() + "');")
            l_objDDLColumnName = CType(e.Item.FindControl("ddlColumn"), RadComboBox)
            l_objDDLOperator = CType(e.Item.FindControl("ddlOperator"), RadComboBox)
            l_objTxtValue = CType(e.Item.FindControl("txtValue"), RadTextBox)
            l_objDDLLogical = CType(e.Item.FindControl("ddlLogical"), RadComboBox)
            l_objDDLRowID = CType(e.Item.FindControl("lblRowID"), Label)

            l_intRIndex = e.Item.ItemIndex + 1
            l_objDDLRowID.Text = l_intRIndex.ToString()

            l_objDDLOperator.SelectedValue = m_objDTFilter.Rows(l_intRCnt)(0).ToString()
            l_objTxtValue.Text = m_objDTFilter.Rows(l_intRCnt)(1).ToString()
            l_objDDLLogical.SelectedValue = m_objDTFilter.Rows(l_intRCnt)(2).ToString()
        End If

    End Sub
    Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButton1.Click

        If radGridColumnsFilter.Value <> "" Then
            l_strColumns = radGridColumnsFilter.Value.Split(",")

            For index = 0 To l_strColumns.Length - 1
                arr.Add(l_strColumns(index).ToString)
            Next
        Else
            Exit Sub
        End If

        For l_intRCnt = 0 To l_strColumns.Length - 1
            m_objDTColumns.Rows.Add(New Object() {l_strColumns.GetValue(l_intRCnt).ToString().ToLower(), l_strColumns.GetValue(l_intRCnt).ToString().ToLower()})
        Next

        'If Not Page.IsPostBack Then
        m_objDTFilter.Rows.Add()
        gvFilter.DataSource = m_objDTFilter
        gvFilter.DataBind()
    End Sub



End Class

<%@ Page Language="VB" EnableViewState="true" AutoEventWireup="false" CodeFile="Filter.aspx.vb" enableEventValidation="false" Inherits="Filter" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!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></title>

     <script type ="text/javascript" src="FilterRadWindow.js" >
     </script>

    <script language="javascript" type="text/javascript">
// <!CDATA[

        function GetRadWindow()
        {
            var oWindow = null;
            if (window.radWindow)
                oWindow = window.radWindow;
            else if (window.frameElement.radWindow)
                oWindow = window.frameElement.radWindow;
            return oWindow;
        }

        function returnArg(arg1)
        {

            var oWnd = GetRadWindow();
            oWnd.close(arg1);

        }

        function Close()
         {
             var oWnd = GetRadWindow();
             oWnd.close();
            }

            function GetRowID(iRowID) {
                try { document.getElementById("hidSelectedRow").value = iRowID; } catch (e) { }
            }


// ]]>
    </script>
</head>
<body >
    <form id="form1" runat="server">
    <div>
      <table cellpadding="1" cellspacing="1">
            <asp:ScriptManager ID="ScriptManager1" runat="server">
            </asp:ScriptManager>
            <tr>
                <td>
                    &nbsp;</td>
            </tr>
            <tr valign="top">
                <td>
                    <asp:UpdatePanel ID="AjxGrid" UpdateMode="Conditional" runat="Server" >
                        <ContentTemplate>
                            <table>
                                <tr valign="top">
                                    <td>
                                        <asp:Panel ID="pnlNewCriteria" runat="server" GroupingText="New Filter Criteria"
                                            CssClass="pnlClass1">
                                            <telerik:RadGrid ID="gvFilter" runat="server"  AutoGenerateColumns="false" CssClass="gvHeaderClass">
                                          <MasterTableView runat ="server"  >
                                                <Columns >
                                                <telerik:GridTemplateColumn >
                                                <ItemTemplate >
                                                <asp:Label ID="lblRowID" runat="Server" CssClass="lblClass"></asp:Label>
                                                </ItemTemplate>
                                                  <ItemStyle Font-Bold="False" Font-Names="Arial" Font-Size="Small" />
                                                </telerik:GridTemplateColumn>

                                                        <telerik:GridTemplateColumn HeaderText="Operator">
                                                            <ItemTemplate>
                                                                <telerik:RadComboBox  ID="ddlOperator" runat="server" CssClass="ddlClass" AutoPostBack="true"
                                                                    EnableViewState="true">
                                                                    <Items >

                                                                    <telerik:RadComboBoxItem Text="Equals" Value="="/>
                                                                    <telerik:RadComboBoxItem Text="Greater Than" Value=">"/>
                                                                     <telerik:RadComboBoxItem Text="Less Than" Value="<" />
                                                                     <telerik:RadComboBoxItem Text="> Than or Equal" Value="&gt;="/>
                                                                    <telerik:RadComboBoxItem Text="< Than or Equal" Value="<="/>
                                                                     <telerik:RadComboBoxItem Text="Doesn't Equal" Value="<>"/>
                                                                     <telerik:RadComboBoxItem Text="Start With" Value="=%"/>
                                                                    <telerik:RadComboBoxItem  Text="Anywhere" Value="=%="/>
                                                                   <telerik:RadComboBoxItem  Text="End With" Value="%="/>
                                                                    </Items>
                                                                   </telerik:RadComboBox>
                                                            </ItemTemplate>
                                                        </telerik:GridTemplateColumn>
                                                         <telerik:GridTemplateColumn HeaderText="Value">
                                                            <ItemTemplate>
                                                            <telerik:RadTextBox  ID="txtValue" runat="server" EnableViewState="true" style="position:relative;" />
                                                             </ItemTemplate>
                                                        </telerik:GridTemplateColumn>
                                                         <telerik:GridTemplateColumn HeaderText="Logical">
                                                            <ItemTemplate>
                                                               <telerik:RadComboBox ID="ddlLogical" runat="server" AutoPostBack="true" EnableViewState="true">
                                                               <Items >

                                                                   <telerik:RadComboBoxItem Text="And" Value="And" />
                                                                   <telerik:RadComboBoxItem Text="Or" Value="Or" />
                                                                   </Items>
                                                                 </telerik:RadComboBox>
                                                            </ItemTemplate>
                                                       </telerik:GridTemplateColumn>
                                                   </Columns>
                                                   </MasterTableView>
                                                    <HeaderStyle BackColor="Control" Font-Bold="False" Font-Names="Arial" Font-Size="Smaller" />
                                                </telerik:RadGrid>
                                        </asp:Panel>
                                    </td>
                                </tr>
                               <tr valign="top">
                                    <td align="center">
                                        <asp:Button ID="btnAdd" runat="server" Text="Add" CssClass="btnClass" />
                                    </td>
                                </tr>

                            </table>
                        </ContentTemplate>
                    </asp:UpdatePanel>
                </td>
            </tr>
        </table>
         <input type="hidden" runat="server" name="h_col" id="h_col" value="" />
        <input type="hidden" runat="server" name="h_filter" id="h_filter" value="" />
        <input type="hidden" name="h_ScrName" id="h_ScrName" runat="server" value="" />
        <input type="hidden" runat="server" name="h_count" id="h_count" value="0" />
        <asp:HiddenField ID="hidSelectedRow" runat="Server" />
        <asp:HiddenField runat ="server"  id="radGridColumnsFilter"/>
        <asp:LinkButton ID="LinkButton1" runat="server"></asp:LinkButton>
    </div>
    </form>
</body>
</html>

[Nikita Gourme]

Do you use the latest version 2010.1.519 of Telerik.Web.UI.dll in the project? Reported issues concerning IE8 compatibility should be addressed by the Telerik team in the latest releases. Also bind your grid using NeedDataSource event handling instead of assigning a data source and calling DataBind() - this will save you some manual coding.

Nikita