I have the following method, IN MY WINDOWS FORM, that I am trying to call in another part of my code:

private bool IsNumeric( string TextValue )
{
    bool IsNumeric = false;
    try
    {
        Convert.ToInt32( TextValue );
        IsNumeric = true;
    }
    catch ( Exception e ) { }
    return IsNumeric;
}

Here is where I am trying to make a call to the method above to check and see if what the user is entering in the textbox is a NUMERIC value. If an ALPHA character is contained in the textbox then launch the message box that I have listed below:

private void Load_Datagrid()
{
    Cursor.Current = Cursors.WaitCursor;

//If the CLIENTID field is left blank or a NON-NUMERIC value is entered then pop-up this message box.
    if (txtClientID.Text.ToString().Length < 1 || IsNumeric(txtClientID.Text.ToString()))
    {
    System.Windows.Forms.MessageBox.Show(this,"A NUMERIC Client ID must be entered."); //\n\n\t", System.Windows.Forms.MessageBoxButtons.OK,System.W indows.Forms.MessageBoxIcon.Warning);
          return;
    }

Any HELP or DIRECTION would be appreciated. I am just getting an exception error and NOT my message box.

Thanks.

I think you have forgotten '!'
if (txtClientID.Text.ToString().Length < 1 || !IsNumeric(txtClientID.Text.ToString()))

-----------------------------------
Mahdi

Mahdi,

That was it! Thank you so much. I appreciate your time and help in looking at this.