i want to display pop window Or popup message on textbox or buttoncontrol?

Private Sub butApply_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles butApply.Click

     If tbStateID.Text = Nothing Then

            MsgBox("State I D is Required", MsgBoxStyle.Critical, "Error")

            cbStateID.Select()

            Return

        End If

        If tbSuburb.Text = "" Then

            MsgBox("Suburb is Required", MsgBoxStyle.Critical, "Error")

            tbSuburb.Select()

            Return 

        End If

        Process the rest....

    End Sub

Nitesh Luharuka
http://www.niteshluharuka.com

Best,
Sudheep.

Nitesh Luharuka
http://www.niteshluharuka.com

Best,
Sudheep.

      private void button1_Click(object sender, EventArgs e)

        {

            if (textBox1.Text.Length == 0)

            {

                MessageBox.Show("Textbox1 should not be empty.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

            }

            if (textBox2.Text.Length == 0)

            {

                MessageBox.Show("Textbox3 should not be empty.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

            }

            if (textBox3.Text.Length == 0)

            {

                MessageBox.Show("Textbox3 should not be empty.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

            }

        }

Nitesh Luharuka
http://www.niteshluharuka.com