Form does not contain a definition for method

Question

Greetings;

 

I've been having this problem for a while and I have tried every solution that was available on

 

the internet but nothing seems to be working for me.

 

This is my Delete.aspx.cs file:

void grd_dataset_RowDeleting(object sender, GridViewDeleteEventArgs e) {

}

 This is my Delete.aspx:

<asp:GridView ID="GridView1" runat="server" onrowdeleting="grd_dataset_RowDeleting">
    <Columns>
        <asp:CommandField ShowDeleteButton="True" ButtonType="Button" />
    </Columns>
</asp:GridView>

 This is the error I'm getting:

 

 Compiler Error Message: CS1061: 'ASP.delete_aspx' does not contain a definition for 'grd_dataset_RowDeleting' and no extension method 'grd_dataset_RowDeleting' accepting a first argument of type 'ASP.delete_aspx' could be found (are you missing a using directive or an assembly reference?)