Question

Calling a method from an active X control

Asked by: BofADev

When a user clicks a button on a webpage I need to create an object on the client and invoke a method in that object.  How do I do this from a asp.net page?

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Asked On
2006-12-12 at 12:16:57ID22090997
Tags

control

,

active

Topics

Programming for ASP.NET

,

Microsoft Programming

,

ActiveX

Participating Experts
1
Points
500
Comments
10

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Answers

 

by: itsvtkPosted on 2006-12-12 at 12:30:34ID: 18125645

What is the Version .NET Framework?

 

by: BofADevPosted on 2006-12-12 at 12:32:21ID: 18125660

2.0.  I'm wondering if that even matters since what I want to do is on the client side.  So how do I get .NET to generate the correct html/scripting code to do this.

 

by: itsvtkPosted on 2006-12-12 at 12:33:36ID: 18125671

Below code works for all Verions

Add a Button Control in web page.

In Page Load event...  write below statemnt

page_load()
{
        Button1.Add( "onclick", "fun1()" );
}




In HTML web page write below statement

<script language='javascript'>
 function fun1()
 {
     //Create client side object here
     var x = new ActiveXObject( "Microsoft.XMLHTTP" );
     ...........
 }
</script>


itsvtk

 

by: itsvtkPosted on 2006-12-12 at 12:35:59ID: 18125685

.NET doesn't generate custom client side code...  you have to write it....

itsvtk

 

by: BofADevPosted on 2006-12-12 at 13:23:48ID: 18126073

Can you help me with this too.  This is the code that I have in the click event of the button.  I'm getting errors because it doesn't know what obj3270 is.  In the createtool call I pass in obj3270 and it is supposed to return the object in the variable I pass.  My thoughts are that I have to do something special to pass a variable by reference instead of by value in java.   Is this true.  If so how do I do it?  Do you think this is what is causing my problem?

function Button1_onclick() {

var objDirector = new ActiveXObject("atlDirectorObject.atlDirector");
var obj3270;
var errmsg;
var strLoanNumber;

if (objDirector.CreateTool("3270", 1, true, true, 0, obj3270, errmsg) == 0)
{
    strLoanNumber = obj3270.LoanNo;
    obj3270.ClearScreen(true, errmsg);
    obj3270.sendkeystrokes("zt01, 6564891940", errmsg);
}

}

 

by: itsvtkPosted on 2006-12-12 at 13:33:29ID: 18126140

In this case Javascript doesn't work... But VBScript works....

Here is the VBScript version of the above Javascript functon


function Button1_onclick()

      dim objDirector :  set objDirector = new ActiveXObject("atlDirectorObject.atlDirector")
      dim obj3270
      dim errmsg
      dim strLoanNumber

      if (objDirector.CreateTool("3270", 1, true, true, 0, obj3270, errmsg) = 0) then
          strLoanNumber = obj3270.LoanNo
          call obj3270.ClearScreen(true, errmsg)
          call obj3270.sendkeystrokes("zt01, 6564891940", errmsg)
      end if

End Function


===============

itsvtk

 

by: itsvtkPosted on 2006-12-12 at 13:38:23ID: 18126179

Ooooops....!


Try this on


=======
function Button1_onclick()

     dim objDirector :  set objDirector = CreateObject("atlDirectorObject.atlDirector")
     dim obj3270
     dim errmsg
     dim strLoanNumber

     if (objDirector.CreateTool("3270", 1, true, true, 0, obj3270, errmsg) = 0) then
         strLoanNumber = obj3270.LoanNo
         call obj3270.ClearScreen(true, errmsg)
         call obj3270.sendkeystrokes("zt01, 6564891940", errmsg)
     end if

End Function


itsvtk

 

by: BofADevPosted on 2006-12-12 at 13:45:14ID: 18126247

That worked do you know the theory behind why the javascript wasn't working?

 

by: itsvtkPosted on 2006-12-12 at 13:53:47ID: 18126306

Javascript doesn't support call by reference.   Its only call by value.....



itsvtk

 

by: BofADevPosted on 2006-12-12 at 14:00:36ID: 18126353

Thank's so much for all of your help!

20120131-EE-VQP-002

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