Hi

When I click on it, it do well. But when I double click on it, an error message is displayed.

" Command Test is Not Supported or Not Implemented"

Plz see my javascript

 

 

And the code behind

 

 

 

Please check this example:

 

 

Double click the insert date custom button.

 

It works fine for me.

 

Your code looks fine to me too. The problem is in some where else.

 

Please just modify the example above to meet your requirement. The source code of this example can be found in the download package.

It is still happen in the sample. 

 

The problem doesn't occur with the code 

   Dim Image1 As New System.Web.UI.WebControls.Image()
   Image1.ToolTip    = "Insert today's date"
   Image1.ImageUrl    = "tools.gif"
   Image1.CssClass    = "CuteEditorButton"
   SetMouseEvents(Image1)
   Image1.Attributes("onclick")="Testing();"
   tc.Control.Controls.Add(Image1)

 

But it will be a problem with this

   Dim ctrlTwoColumns As System.Web.UI.WebControls.WebControl
   ctrlTwoColumns = Editor1.CreateCommandButton("Testing", "download.gif", "Testing")
   ctrlTwoColumns.Attributes("onclick") = "Testing();"
   tc.Control.Controls.Add(ctrlTwoColumns)

 

Maybe something wrong with System.Web.UI.WebControls.WebControl when receiving doubleclik event