How to determine if a management or user management interface is available?

Question

I iterate over an array of controls and need to know which end-user controls can (via JavaScript or directly) change the value that is sent back. Where can I find such a list?

So far I have this:

Private Function IsEditableControl(ByVal control As Control) As Boolean
    Return TypeOf control Is IEditableTextControl _
     OrElse TypeOf control Is ICheckBoxControl _
     OrElse GetType(ListControl).IsAssignableFrom(control.GetType()) _
     OrElse GetType(HiddenField).IsAssignableFrom(control.GetType())
End Function

Answer 1

I'm sure you only need to know if this control implements IPostBackDataHandler .

Public Shared Function IsControlEditable(ByVal ctrl As Control) As Boolean
    Return TypeOf ctrl Is IPostBackDataHandler
End Function

" , , , , , IPostBackDataHandler. , , , ".

, :

• CheckBox
• CheckBoxList
• DropDownList
• HtmlInputCheckBox
• HtmlInputFile
• HtmlInputHidden
• HtmlInputImage
• HtmlInputRadioButton
• HtmlInputText
• Html
• HtmlTextArea
• ImageButton
• ListBox
• RadioButtonList
• TextBox

IPostBackDataHandler , ( , ) .

Answer 2

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