Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Button1.Enabled = False End Sub Private Sub TextBox2_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyUp If Val(TextBox1.Text) + Val(TextBox2.Text) > 0 Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp If Val(TextBox1.Text) + Val(TextBox2.Text) > 0 Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub
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Posez votre questionIf IsNumeric(TextBox1.Text) True And IsNumeric(TextBox2.Text) True Then Button1.Enabled = True Else Button1.Enabled = False End If
Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp TextBox1.Text = Replace(TextBox1.Text, ".", ",")
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Button1.Enabled = False End Sub Private Sub TextBox2_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyUp TextBox2.Text = Replace(TextBox2.Text, ".", ",") TextBox2.Select(TextBox2.Text.Length, 1) If IsNumeric(TextBox1.Text) True And IsNumeric(TextBox2.Text) True Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp TextBox1.Text = Replace(TextBox1.Text, ".", ",") TextBox1.Select(TextBox1.Text.Length, 1) If IsNumeric(TextBox1.Text) True And IsNumeric(TextBox2.Text) True Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub
Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Button1.Enabled = False End Sub Private Sub TextBox2_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyUp Dim x, y As Double If Double.TryParse(DirectCast(sender, TextBox).Text, x) And Double.TryParse(TextBox1.Text, y) Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp Dim x, y As Double If Double.TryParse(DirectCast(sender, TextBox).Text, x) And Double.TryParse(TextBox2.Text, y) Then Button1.Enabled = True Else Button1.Enabled = False End If End Sub End Class
un peu plus nette euh net
blocker le boutton tant qu'il y a pas des donnees numerique dans les 2 textbox