Question about using textboxes

[kjspear]

Hello everyone,

I'm learning VB.NET. I created a form with a text box. I'm not sure how to capture the users data entry from the textbox to store in a variable. Here is what I used'

'
Me.TextBox3.Focus()
totalg = Val(TextBox3.Text)
Me.TextBox3.Update()'

What I want to do is when the user enters a number in the textbox and calculates that number.

Thank you in advance.

 

[chrissie1]

You will have to explain better what you want andwhat you got. ANd what the problem is.

This seems to be to simple.

Christiaan Baes
Belgium

My Blog

 

[Qamgine]

If you had 3 textboxes on your form, TextBox1, TextBox2, and TextBox3 and you wanted to add TextBox1 to TextBox2 and display in TextBox3 you could do the following.

Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
	If e.KeyCode = Keys.Enter Then
		 If Not TextBox1.Text.Trim = "" And Not TextBox1.Text.Trim = "" Then
			  If IsNumeric(TextBox1.Text) And IsNumeric(TextBox2.Text) Then
					e.Handled = True
			 		e.SuppressKeyPress = True
					TextBox3.Text = CInt(TextBox1.Text) + CInt(TextBox2.Text)
			  End If
		 End If
	End If
End Sub