Calling a Gridview Event from button Click

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C#

C#4.0

ASP.NET4

I have a button on which I have to Call an event of Gridview can anyone help how can I do this functionality. Take a note that the event e in both the method are different and I require GridViewUpdateEventArgs e

To be more clear

In this event

protected void bUpdate_Click(object sender, EventArgs e)
       {
          // I have to call Gridview Event
       }

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            //Code to be called is written over here 
        }