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POIndex was out of range in grid row command
 

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    <p>I'd like to reach gridView a cell's value.But it gives the error is 'Index was out of range. Must be non-negative and less than the size of the collection. grid row command'</p> <p>Can somebody help me?</p> <pre><code> &lt;asp:GridView ID="grdList" runat="server" AutoGenerateColumns="False" GridLines="None" PageSize="5" AllowPaging="True" OnPageIndexChanging="Grd_Allergys_PageIndexChanging" OnRowCommand="grdList_RowCommand" OnRowDeleting="grdList_RowDeleting" OnRowEditing="grdList_RowEditing"&gt; &lt;Columns&gt; &lt;asp:BoundField DataField="LangId" HeaderText="LangId" /&gt; &lt;asp:BoundField DataField="LangName" HeaderText="LangName" /&gt; &lt;asp:TemplateField HeaderText="Edit"&gt; &lt;ItemTemplate&gt; &lt;asp:ImageButton ID="imgBtnEdit" runat="server" CommandName="Edit" CommandArgument='&lt;%#Eval("LangId") %&gt;' ImageUrl="~/Image/edit.jpg" /&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="Delete"&gt; &lt;ItemTemplate&gt; &lt;asp:ImageButton ID="imgBtnDelete" runat="server" CommandName="Delete" CommandArgument='&lt;%#Eval("LangId")%&gt;' ImageUrl="~/Image/delete_icon.gif" OnClientClick="return confirm('Do you want to continue ?')" /&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;PagerSettings Mode="Numeric" /&gt; &lt;/asp:GridView&gt; protected void grdList_RowCommand(object sender, GridViewCommandEventArgs e) { DBDataContext dc = new DBDataContext(); if (e.CommandName == "Edit") { int rowIndex = int.Parse(e.CommandArgument.ToString()); string LangName = grdList.DataKeys[rowIndex]["LangName"].ToString(); } } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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