Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument

EDN Admin · Nov 6, 2012

I got this error when i click a link button inside my gridview. i found some answer for this and added a trigger inside my update panel.After adding the trigger the link button click am not getting error and the documents are opened.But i am getting another
problem now due to this. I have sorting functionality in the grid. Now when i click sorting the pop up closes.By the way my gridview is placed inside a modal pop up control.
Please refer below for the code..Kindly help me so that to satisfy both the conditions.
<span style="font-size:small

<p style="line-height:normal; margin-bottom:0pt <span style="font-family:Courier New; color:blue; font-size:10pt <<span style="font-family:Courier New; color:#a31515; font-size:10pt ajaxToolkit<span style="font-family:Courier New; color:blue; font-size:10pt :<span style="font-family:Courier New; color:#a31515; font-size:10pt UpdatePanel<span style="font-family:Courier New; font-size:10pt
<span style="color:red ID<span style="color:blue ="UpdatePanelClaimDoc"
<span style="color:red runat<span style="color:blue ="server" 



<asp

anel ID="Panel4" runat="server" Width="100%" Style="display: none;

 

<asp:Label ID="Label13" runat="server" CssClass="ReplaceLabel </asp:Label>

</asp

anel>--



 <span style="background:yellow <%<span style="color:green --<div
align="center" id="divClaimDocPageControlTop" runat="server

<uc4:ucPage ID="UcPageTopClaimDoc" runat="server" />

--




<span style="color:red AllowSorting<span style="color:blue ="True"

<span style="color:red runat<span style="color:blue ="server"
<span style="color:red ShowHeader<span style="color:blue ="true" <span style="color:red
OnRowCreated<span style="color:blue ="grdClaimDocuments_RowCreated"

<span style="color:red OnRowCommand<span style="color:blue ="grdClaimDocumnets_RowCommand"





<span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 TemplateField
<span style="color:red HeaderText<span style="color:blue ="Document Description"



 Text=<%# Eval("DocumentDesc") %>></asp:Label>--

<span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 LinkButton
<span style="color:red ID<span style="color:blue ="lnkDocumentDesc"

<span style="color:red Font-Underline<span style="color:blue ="true"
<span style="color:red ForeColor<span style="color:blue ="Blue" 


<asp:HiddenField ID="hdnDocumentUrl" runat="Server" Value=<%#Eval("DocumentURL")%>/>--



<span style="color:blue <

<span style="color:blue <





<span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 TemplateField
<span style="color:red HeaderText<span style="color:blue ="Uploaded Date"



<span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 Label
<span style="color:red ID<span style="color:blue ="lblUploadedDate"
</



<span style="color:blue <

<span style="color:blue <



<span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 TemplateField
<span style="color:red HeaderText<span style="color:blue ="Scanned Date"



 <span style="color:blue <<span style="color:#a31515 asp<span style="color:blue :<span style="color:#a31515 Label
<span style="color:red ID<span style="color:blue ="lblScannedDate"
</



<span style="color:blue <

<span style="color:blue <





<span style="color:blue <











<span style="color:blue <<span style="color:#a31515 div
<span style="color:red class<span style="color:blue ="divPageTable"
<span style="color:red align<span style="color:blue ="center" <span style="color:red
id<span style="color:blue ="divClaimDocPageControlBottom" 
<span style="color:blue <<span style="color:#a31515 uc4<span style="color:blue :








<p style="line-height:normal; margin-bottom:0pt
<p style="margin-bottom:0pt <span style="font-family:Courier New; color:blue; font-size:10pt <<span style="font-family:Courier New; color:#a31515; font-size:10pt ajaxToolkit<span style="font-family:Courier New; color:blue; font-size:10pt :<span style="font-family:Courier New; color:#a31515; font-size:10pt PostBackTrigger





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Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument

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