Modal Web Form Dialogs ???

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  18 years ago

  by JasonV

  Jason Vanord

  New York State, USA, United States

  Joined 18 years ago

  I'm working on an application that makes use of MSIE 4.0 + "showModalDialog" JavaScript/JScript function.  The calling page does something like this:
  

  
  showModalDialog('MyDialog.aspx' + queryString, dialogArgs, displaySettings);
  

  
  As one can see, the resource called by the dialog window is an ASP.NET web form.  The problem is that MSIE dialog windows do not work well with ASPX post-backs.  Upon any user event that should cause a post-back, the dialog window launches a new window that causes an error.
  

  
  For example, using the default previous/next controls of the DataGrid control (named "dgSelection"), clicking either previous or next link will launch a new window with the following address:
  

  
  javascript:_doPostBack('dgSelection:ctl14:_ctl1','')
  

  
  The function "__doPostBack" is generated by ASP.NET.  This naturally causes an error because the function exists in the dialog window and should be called there and not in a new window.
  

  
  There seems to be no documentation about using these kind of dialog boxes with ASP.NET web forms.  I did try to set the <FORM target="_self"> attribute, but that had no effect.
  

  
  Does anyone have any idea how to get a dialog window to respond correctly to post-backs?  There is always the option of re-coding to use window.open() rather than showModalDialog(), but I would rather not re-invent the wheel, especially at the cost of development time and some functionality.
  

  
  Thanks in advance.

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