How to set Button clicked programmatically

Question

I'm using LinkButton(Consider it as Button) in ASP .Net. I need to click that button programmatically using C# code behind. How can I achieve this..?

Answer 1

Don't use event-handlers as methods, their only purpose is to handle events. All functionality should be encapsulated in methods that can be called from within the event-handler as well as from wherever you need it.

protected void Button_Click(sender As Object, e As CommandEventArgs) 
{
     int id=int32.Parse(e.CommandArgument.ToString());
     doSomething(id);
}

Then you can call this method for example from page's load event as well:

protected void Page_Load(object sender, EventArgs e)
{
    //get the ID of the first record in GridView's DataSource here or where you databind the GridView
   doSomething(id);
}

public void doSomething(int id) { //do something }

How to pass the ID from the GridView record as CommandArgument:

<asp:TemplateField>
      <ItemTemplate>
          <asp:LinkButton ID="Button1" runat="server" CommandArgument='<%#Eval("IdColumn")%>' OnCommand="Button_Click" Text="Do Something">
          </asp:LinkButton>
       </ItemTemplate>
</asp:TemplateField>