Error while editing a row in Gridview for which Paging is enbled in asp.net

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Hi all,

In my asp.net web applications web form i used gridview to display list of transactions done by customer/vendors. The gridview is paging enabled, page size is 20,present there is 26 transactions are there so gridview contains 26 rows.

The problem is when ever i am trying to edit row which are present other then first page an exception is throwing by system that is:

CSS

Exception Details: System.ArgumentOutOfRangeException: Index was out of
range. Must be non-negative and less than the size of the collection.
Parameter name: index

Gridview rowdatabound code is as follows:

C#

protected void gvTransactionDetails_RowCommand(object sender, GridViewCommandEventArgs e)
 {
   if (e.CommandName == "Edit")
   {

    int igvTransactionDetailsIndex = Convert.ToInt32(e.CommandArgument);


   GridViewRow gvTransactionDetailsrow = gvTransactionDetails.Rows[igvTransactionDetailsIndex];
   Session["TDID"] = gvTransactionDetails.DataKeys[igvTransactionDetailsIndex].Value;
         
    Response.Redirect("~/AddEditTransactionDetails.aspx?AddEdit=Edit&CusVen=" +sCusVen);
           }
       }

please anybody help me to solve that error.

Thanks in advance
Uday

Posted 21-Oct-11 23:33pm

udaysimha

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-10-22T16:36:00

Solution 1

First, this is not nice to ask such question without showing exact line where it was thrown/propagated. You can find it out running the code under debugger or by catching all exception on top of the stack of this thread and examining Exception.Stack.

Most likely, this is the line where igvTransactionDetailsIndex is first used as an index, or in next line. If could be less than 0 or more or equal to the number of Rows or number of DataKeys. Check up the value of this variable.

—SA

Posted 22-Oct-11 16:36pm

Sergey Alexandrovich Kryukov

Comments

Espen Harlinn 23-Oct-11 6:42am

Good advice

Sergey Alexandrovich Kryukov 23-Oct-11 19:01pm

Thank you, Espen.
--SA

udaysimha 24-Oct-11 0:50am

Hi SAKryukov,

Thanks for your replay and advice.Here gridview contains 26 rows, size of the page i set to 20.Whenever i am trying to edit the first 20 rows which are present in first page there is no problem at all.The problem is whenever i am trying to edit rows from 21 or more it`s throwing exception.

The line igvTransactionDetailsIndex is used to find the index of row which is going to edit.it getting the index of row which is going to edit currectly but the next line that as below

GridViewRow gvTransactionDetailsrow = gvTransactionDetails.Rows[igvTransactionDetailsIndex];//exception throwing here

The gridviewrow object gvTransactionDetailsrow is returning null.

Please suggest me to solve this problem.

Thaks
Uday

AlokZanwar1985 · Answer 2 · 2011-10-22T18:55:00

Solution 2

please put your gridview html code so that it will clear some picture regarding command argument and datakeys parameter which will help to find out the solution as per you code i think you need to check the value of igvTransactionDetailsIndex ideally it should accept row index surely there will a solution but you need to put your gridview html code for this.

Posted 22-Oct-11 18:55pm

AlokZanwar1985

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udaysimha 24-Oct-11 0:59am

Hi AlokZanwar,

Thanks for your reply and suggestion.Here i am puting gridview html code:

<asp:GridView ID="gvTransactionDetails" runat="server" Style="left: -3px; position: relative;
top: 44px; width: 641px;" AutoGenerateColumns="False" ShowFooter="false" CellPadding="4"
ForeColor="#333333" GridLines="None" OnRowEditing="gvTransactionDetails_RowEditing"
OnRowCommand="gvTransactionDetails_RowCommand" OnRowDataBound="gvTransactionDetails_RowDataBound"
DataKeyNames="TDID" AllowPaging="True" onpageindexchanging="gvTransactionDetails_PageIndexChanging" PageSize="20">
<footerstyle forecolor="White" font-bold="True" backcolor="#1C5E55">
<rowstyle backcolor="#E3EAEB">
<columns>
<asp:BoundField HeaderText="CVRelID" DataField="CVRelID" Visible="false" />
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate>
TransID</HeaderTemplate>
<itemtemplate>
<%#Eval("TransID")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">
<asp:TemplateField Visible="false" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate> VendorID</HeaderTemplate>
<itemtemplate>
<%#Eval("VendorID")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate>
VendorName</HeaderTemplate>
<itemtemplate>
<%#Eval("VendorName")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">
<asp:TemplateField Visible="false" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate>CustomerID</HeaderTemplate>
<itemtemplate>
<%#Eval("CustomerID")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate>CustomerName</HeaderTemplate>
<itemtemplate>
<%#Eval("CustomerName")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<HeaderTemplate>Origin</HeaderTemplate>
<itemtemplate> <%#Eval("Origin")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">

udaysimha 24-Oct-11 4:56am

<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">

<HeaderTemplate>Destination</HeaderTemplate>

<itemtemplate> <%#Eval("Destination")%>

<HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">

<asp:TemplateField ShowHeader="False" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center"><itemtemplate><asp:ImageButton ID="ibEdit" runat="server" CausesValidation="False" CommandName="Edit"ImageUrl="~/images/Edit.gif" ToolTip="Edit" CommandArgument='<%# Container.DataItemIndex %>'><HeaderStyle HorizontalAlign="Center"></HeaderStyle><itemstyle horizontalalign="Center">

please help me to solve this error.
Thanks