Binding RadGridView GridTemplateColumn to Custom List

[Joseph]

hi guys,

I am trying to bind a list of a custom class to the following RadGridView:

<rad:RadGrid Skin="Office2007" runat="server"



                                          OnItemDataBound="gridAdd_ItemDataBound"
                         AllowAutomaticDeletes="True"
                         OnItemCommand="RadGrid1_ItemCommand"

                         AllowAutomaticInserts="True"
                         OnInsertCommand="gridAdd_InsertCommand"
                       NoMasterRecordsText="No Files selected for this PO"
                       OnDeleteCommand="gridAdd_ItemDeleted"
                        AutoGenerateColumns="false"  id="gridAdd"
                            AllowPaging="true" PageSize="5" onneeddatasource="gridAdd_NeedDataSource">
                       <MasterTableView   NoMasterRecordsText="No Files selected for this PO"  EditMode="InPlace" AllowAutomaticUpdates="false"   AllowAutomaticInserts="true" CommandItemDisplay="Bottom"   DataKeyNames="ID,FileID, GVMXID"  >
                            <Columns>

                            <rad:GridEditCommandColumn  ButtonType="LinkButton" UniqueName="EditCommandColumn2">
                                <HeaderStyle Width="20px" />

                            </rad:GridEditCommandColumn>



                                <rad:GridTemplateColumn HeaderText="File" >
                                <ItemTemplate>

                                    <rad:RadComboBox Visible="false"    CheckBoxes="true"   OnDataBinding="comboFiles_DataBind" DataSourceID="odsFiles"     Height="200" Skin="Vista" ID="comboFiles" Width="200"   DataTextField="OriginalName" DataValueField="ID"    runat="server">

                                    </rad:RadComboBox>
                                    <asp:Label ID="lblFileName" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.FileName") %>'></asp:Label>
                                </ItemTemplate>
                                <ItemStyle  Wrap="true" Width="100"  HorizontalAlign="Center" />
                                 <HeaderStyle ForeColor="#4e6ea4" HorizontalAlign="Center" Font-Bold="true" />
                               </rad:GridTemplateColumn>


                              <rad:GridTemplateColumn HeaderText="TM" >
                                <ItemTemplate>

                                    <rad:RadComboBox Visible="false" AppendDataBoundItems="true"   Height="200" Skin="Vista" ID="comboTMs" DataSourceID="odsTMs"  DataTextField="TMName" DataValueField="ID" runat="server">

                                    </rad:RadComboBox>
                                    <asp:Label ID="lblTMName" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.TMName") %>'></asp:Label>
                                </ItemTemplate>
                                <ItemStyle  Wrap="true" Width="100"  HorizontalAlign="left" />
                                 <HeaderStyle ForeColor="#4e6ea4" HorizontalAlign="Center" Font-Bold="true" />
                               </rad:GridTemplateColumn>

                               <rad:GridTemplateColumn HeaderText="Tag Settings" >
                                <ItemTemplate>
          <table>
          <tr><td style="border:0px; min-width:150px;">
             <asp:CheckBox Visible="false" onclick="toggle(this)"  runat="server" Checked="true" ID="chkDefault" Text="Use Default Tag Settings" />
          </td></tr>

          <tr><td style="border:0px;">
           <asp:FileUpload Visible="false"  runat="server" ClientIDMode="Static" ID="fileUpload" />
          </td></tr>
          </table>


                                    <asp:Label ID="lblTagSettings" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.TagSettings") %>'></asp:Label>
                                </ItemTemplate>
                                <ItemStyle  Wrap="true" Width="100"  HorizontalAlign="Center" />
                                 <HeaderStyle ForeColor="#4e6ea4" HorizontalAlign="Center" Font-Bold="true" />
                               </rad:GridTemplateColumn>



                                <rad:GridButtonColumn ConfirmDialogType="RadWindow" ConfirmText="Are you sure you want to delete this file from PO?" ButtonType="ImageButton"
                                CommandName="Delete" Text="Delete" UniqueName="DeleteDiscount">
                                <HeaderStyle Width="20px" />

                            </rad:GridButtonColumn>
                            </Columns>
                            <CommandItemSettings ShowRefreshButton="false"  AddNewRecordText="Add New Files" />
                        </MasterTableView>

                    </rad:RadGrid>

Code behind, NeedDataSource Event:

protected void gridAdd_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{

    gridAdd.DataSource = (List<POFilesInMemory>)Session["POFiles"];


}

The Grid is showing empty. I checked the List<POFilesInMemory> and it has items:

Here is the class :

public class POFilesInMemory
{
    public int FileID { get; set; }
    public string FileName { get; set; }
    public int TMID { get; set; }
    public string TMName { get; set; }

    public string TagSettingsName { get; set; }
}

Any ideas guys ?

[Joseph]

I have tried to use the DataItem.Container and cast it to the custom class but got a telerik error.

[Eyup]

Hello Joseph,

I have created a simple RadGrid page using the provided code. Please find the attached project and let me know if I am missing something out. Try to replace my custom datasource with your own and to determine the crucial differences between our applications. 

Greetings,
Eyup
the Telerik team