CommandArgument in the Gridview

I have a gridview like this.

<asp:GridView ID="grdMerchant" runat="server" GridLines="None"
   HeaderStyle-Font-Bold="True" AutoGenerateColumns="False" AllowSorting="True" ShowHeader="false" OnRowDataBound="grdMerchant_RowDataBound" OnRowCommand="grdMerchant_RowCommand" DataKeyNames="OrderID" style="table-layout:auto;width:100%;" >  


<asp:TemplateField >
<ItemTemplate>
   <asp:Linkbutton ID= "btnView" runat="server" Text="View" OnClick="btnView_OnClick" CommandArgument='<%#Eval("OrderID")%>' ></asp:Linkbutton>

How do i have to get the OrderID of the selected row. I tried using

int OrderID = (int)grdMerchant.DataKeys[row.RowIndex][2];

But it gets null and i know this is not the way. Help me.

Thank you in advance!

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Answers:

Method 1

Answers:

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Method 1

try like this

 <asp:GridView ID="grd1" runat="Server" width="500px" AutoGenerateColumns="false" DataKeyNames="StateID" OnRowEditing="grd1_RowEditing">
  <Columns>
       <asp:TemplateField>
              <ItemTemplate>
                      <asp:LinkButton ID="btnDelete" runat="server" CommandArgument='<%#Eval("StateID")%>' OnCommand="lnkDelete" Text="Delete">
                      </asp:LinkButton>
               </ItemTemplate>
        </asp:TemplateField>
   </Columns>

 protected void lnkDelete(Object sender, CommandEventArgs e)
 {
    int iStID=int32.Parse(e.CommandArgument.ToString());
 }

 //iStID has the DataKey value which you can use.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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