Access Instance Of A Radiobutton From Radiobuttonlist Through Javascript?

Feb 8, 2010

If we are using ASP.NET Radiobuttonlist in our page it becomes a little difficult to find the instance of it through Javascript because it is rendered in a different way in the browser ( the code is reproduced below )

[Code]....

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I use radiobutton in my page

<asp:RadioButtonList ID="RBLType" runat="server" RepeatDirection="Horizontal" TextAlign="right"
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[code]....

but I run page below error happen.Object reference not set to an instance of an object.An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error: 

Line 91:  if (_dr["storetype"].ToString().Trim() == "دارای محصول")Line 92:   {
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Line 95:  else {

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I have 2 radiobutton list in my page when I didn't select item from radiobuttonlist it make below error

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Line 834:
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var list = document.getElementById("radios"); //Client ID of the radiolist
var inputs = list.getElementsByTagName("input");
var selected;
for (var i = 0; i < inputs.length; i++)
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AutoPostBack="True"[code]...

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var RLCompareParameter = this.document.getElementById("<%= RLCompareParameter.ClientID %>");
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[Code]....

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[Code]....

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[Code]....

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[Code]....

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[Code]....

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[Code]....

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[Code]....

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for more information:

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