pulling me hair out

private void btnVenID_Click(object sender, System.EventArgs args)
	{
		// ** Place Event Handling Code Here **
		MessageBox.Show("btnclick");
		if (venID1 == null )
		{
			MessageBox.Show("btn clicked venid1 is equal to null saving ven id1 this is what we are storing:",venID.Text.ToString());
			venID1 = (EpiTextBox)csm.GetNativeControlReference("4ce376bb-225b-4b04-ac18-0c6bdc69820b");
			venNew = venID1.Text;
		}
		if (venID != null)
		{
			//MessageBox.Show(venID.Text.ToString());
			//MessageBox.Show(venOld);
			if (String.Equals(venOld, venNew))
			{	
				//MessageBox.Show("venid1 and venid are equal venID1:", venID1.Text.ToString());
				MessageBox.Show("venID:", venID.Text.ToString());
				MessageBox.Show("those should have been the same ");
				
			} else {
				//MessageBox.Show(venNew);
				MessageBox.Show(venOld);
				//MessageBox.Show("venid1 is NOT null here is what it is:", venID1.Text.ToString());
				MessageBox.Show("venid1 is NOT null here is venID:", venID.Text.ToString());
				MessageBox.Show("they shouldnt be the same");
				ugInvRange.DataSource = null;
				dtStartDate.Text = "12/31/2021";
				dtEndDate.Text = "12/31/2021";
				venID1 = (EpiTextBox)csm.GetNativeControlReference("4ce376bb-225b-4b04-ac18-0c6bdc69820b");
				venNew = venID1.Text;
			}
		}
	}