[Aly El-Haddad]

Aly El-Haddad كتب :لاحظت الآن قصوراً في كودي و هو عند تحديد TextBox ثم الضغط على أداة أخرى على الـForm لتأدية وظيفة ما ثم الضغط على Button1 يكتب الـ"1" في الـTextBox كما لو أنه كان محدد

لذا فقد عالجت هذا القصور بجعل الكود كالتالي

كود :

Public Class Form1

    Private txt1 As Boolean = False
    Private txt2 As Boolean = False
    Private hLastCtrl As New IntPtr

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        For Each C As Control In Me.Controls
            AddHandler C.Leave, AddressOf SetLastFocusedControl
        Next
    End Sub

    Private Sub SetLastFocusedControl(ByVal sender As System.Object, ByVal e As System.EventArgs)
        hLastCtrl = sender.Handle
    End Sub

    Private Sub TextBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.Enter
        txt2 = False
        txt1 = True
    End Sub

    Private Sub TextBox2_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox2.Enter
        txt1 = False
        txt2 = True
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If (hLastCtrl = TextBox1.Handle) AndAlso txt1 Then
            TextBox1.Text = "1"
            txt1 = False
        End If
        If (hLastCtrl = TextBox2.Handle) AndAlso txt2 Then
            TextBox2.Text = "1"
            txt2 = False
        End If
    End Sub
End Class

بعدما أستخدمت طريقة أخذ آخر Control تم الضغط عليه فلم أجد حاجة لأي من txt1 أو txt2
الآن أصبح الكود:

كود :

Public Class Form1

    Private hLastCtrl As New IntPtr

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        For Each C As Control In Me.Controls
            AddHandler C.Leave, AddressOf SetLastFocusedControl
        Next
    End Sub

    Private Sub SetLastFocusedControl(ByVal sender As System.Object, ByVal e As System.EventArgs)
        hLastCtrl = sender.Handle
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If (hLastCtrl = TextBox1.Handle) Then
            TextBox1.Text = "1"
        End If
        If (hLastCtrl = TextBox2.Handle) Then
            TextBox2.Text = "1"
        End If
    End Sub
End Class