There are 2 types of ContentMode of a WebDialogBox, which are InlineContent
                and IFrame.
            
                This topic will show you how to customize content modes.
            
                To customize content modes
            
                - Drag two WebDialogBox and two WebButton controls to the WebForm.
- For the second WebDialogBox, set ContentURL to any content you
                    want to include. For example: HTMLPage.htm.
- Use WebButton's OnClientClick client-side event to show dialog
                    box.
                    
                        
                            
                                
                                
                             
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function WebButton1_OnClientClick(controlId, parameter)
{
   var WebButton1 = ISGetObject(controlId);
   var WebDialogBox1 = ISGetObject("WebDialogBox1");
   WebDialogBox1.ShowDialog();
   return true;
}
function WebButton2_OnClientClick(controlId, parameter)
{
   var WebButton2 = ISGetObject(controlId);
   var WebDialogBox2 = ISGetObject("WebDialogBox2");
   WebDialogBox2.ShowDialog();
   return true;
}
                         |  
 
 
- Run the project.