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Microsoft JScript runtime error: Object doesn't support this property or method

Posted By:      Posted Date: October 20, 2010    Points: 0   Category :ASP.Net


When I am updating dropdown of parent window from popup it shows error JScript runtime error. But I can able to clear the dropdown. When I am adding only the problem is occuring. I have pasted the code below

var ddlVendor = window.opener.aspnetForm.document.getElementById('ctl00_DefaultContent_ddlVendor');

//Clears the state combo box contents.

for (var count = ddlVendor.options.length-1; count >-1; count--)


ddlVendor.options[count] =


var stateNodes = listNode.getElementsByTagName('Table1/UserName');

var stateIds = listNode.getElementsByTagName('Table1/Password');

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