Question

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSource1"
  OnItemDataBound="Repeater1_ItemDatabound">
    <ItemTemplate>
      <tr>
        <td>
          <%#Eval("Priority") %>
        </td>
        <td>
        <%#Eval("ProjectName") %>
        </td>                 
        <td>
          <%#Eval("DisplayName") %>
        </td>
        <td>
          <asp:HyperLink ID="HyperLink1" runat="server"
            NavigateUrl='<%# Eval("EmailID" , "mailto:{0}") %>'
            Text='<%# Eval("EmailID") %>'></asp:HyperLink>
        </td>
        <td>
          <%#Eval("ProjectID") %>
        </td>
        <td>
          <asp:Button ID="btnCompleteProject" runat="server" Text="Close Project"
            OnCommand="CloseProject"  CommandName="Close"
            CommandArgument='<%# Eval("ProjectID") %>' />

How do I get the ProjectID of the Row in which I click the close Project Button(btnCompleteProject) ?

Answer 1

You can add an ItemCommand event to the repeater control and add a cole something like this:

public void Repeater1_ItemCommand(Object Sender, RepeaterCommandEventArgs e) 
{
    // check if the command name is close (if it's the button)
    if (e.CommandName == "Close") {
       // get CommandArgument you have seeted on the button
       int projectd = (int)e.CommandArgument;

       // your code here...

    }
}  

And add the repeater tag, you event:

<asp:Repeater ID="Repeater1" 
   runat="server" 
   DataSourceID="SqlDataSource1" 
   OnItemDataBound="Repeater1_ItemDatabound" 
   OnItemCommand="Repeater1_ItemCommand">
...
</asp:Repeater>