C# - Set The One Template For Edit/insert And View In My Custom FormView Control

Aug 17, 2010

I would like to set the one template for edit/insert and view in my custom FormView control . But i got these odd exception Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.Table'.

public class CustomFormView : FormView
[PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(typeof(FormView), BindingDirection.TwoWay)]
public IBindableTemplate FormTemplate { get; set; }
protected override void OnInit(EventArgs e)
if (FormTemplate != null)
if (CurrentMode == FormViewMode.Edit)
edited :
in the first step , I created the new user control and added a formview ("FV")
public partial class Form : UserControl
private IBindableTemplate _template = null;
TemplateContainer(typeof(FormView), System.ComponentModel.BindingDirection.TwoWay)]
public IBindableTemplate FormTemplate { set;get }
protected void Page_Init()
if (FormTemplate != null)
FV.InsertItemTemplate = FV.EditItemTemplate = FormTemplate;
if (!IsPostBack) FormTemplate.InstantiateIn(FV);

Now , I want to convert this user control to web control.

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