[Solved] Dynamic usercontrol in dynamic itemtemplate not initialized

[Hugues]

We dynamically create GridTemplateColumn with an inner usercontrol but my usercontrol does not get initialized so whenever I try to access the controls inside it, those are all null.

Is there something I miss??

Bellow is the page codebehind and the ItemTemplate class.

ConfigureGrid()
{
...            OrenGrid.MasterTableView.Columns.Add(CreateItemTemplateColumn("Oren2"));
...
}


private GridColumn CreateItemTemplateColumn(string fieldName)
{
   GridTemplateColumn templateColumn = new GridTemplateColumn();
   templateColumn.ItemTemplate = new MyEditTempate(fieldName);
   templateColumn.HeaderText = fieldName;
   templateColumn.DataField = fieldName;
   return (templateColumn);
}


internal class MyEditTempate : IBindableTemplate
{
   private const string m_MyEditTemplateId = "MyEditTemplateTextBox";

   private readonly string m_FieldName;

   public MyEditTempate(string fieldName)
   {
      m_FieldName = fieldName;
   }

   public void InstantiateIn(Control container)
   {
      Control control = container.Page.LoadControl(typeof(PerformanceObjectiveControl), new object[] { });
      control.ID = m_MyEditTemplateId;

      control.DataBinding += DataBindControl;
      container.Controls.Add(panel);
      panel.Controls.Add(control);
   }

   private void DataBindControl(object sender, EventArgs e)
   {
      PerformanceObjectiveControl control = (PerformanceObjectiveControl)sender;
      GridDataItem namingContainer = (GridDataItem)control.NamingContainer;
      control.Text = ((DataRowView)namingContainer.DataItem)[m_FieldName].ToString();
   }

   public IOrderedDictionary ExtractValues(Control container)
   {
      PerformanceObjectiveControl control = (PerformanceObjectiveControl)container.FindControl(m_MyEditTemplateId);
      IOrderedDictionary dictionary = new OrderedDictionary();
      dictionary[m_FieldName] = control.Text;
      return (dictionary);
   }
}

The usercontrol PerformanceObjectiveControl only contains a asp:TextBox control and has a property called Text which (for now) is only a façade to the TextBox.Text itself.

Thanks,

Hugues

[Georgi Krustev]

Hello Hugues,

May I ask you to verify whether the ConfigureGrid() method is called when Page's Init event is raised?

Please examine this online help article which is devoted on this matter.

Regards,
Georgi Krustev
the Telerik team

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