Single checkbox to check multiple checkboxes in Visual Basic

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Hi good people of codeproject, I have created a groupBox1 which contains 39 checkboxes which can be checked individually, and I have created a gropuBox2 which contains single check box called "Check All", What I want is when the "Check All" check box is checked all the 39 checkboxes will be selected and when the "Check All" is unchecked all 39 checkboxes will be unchecked also, Can someone please help? Thank you very much.

Posted 15-Oct-14 3:46am

Member 11155542

Updated 15-Oct-14 4:00am

v3

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4 solutions

Solution 3

I think the best solution for this will be

C#

private void CheckUncheck()
       {
           foreach (CheckBox chk in groupBox1.Controls)
           {
               chk.Checked = chk.Checked == false;
           }
       }

Posted 15-Oct-14 5:07am

NaibedyaKar

Comments

Sergey Alexandrovich Kryukov 15-Oct-14 12:20pm

Sure, a 5.
—SA

NaibedyaKar 15-Oct-14 12:28pm

Happy that it helped you

Sergey Alexandrovich Kryukov 15-Oct-14 12:50pm

Huh?
—SA

Solution 1

Refer: VB - Unchecking Check Boxes in a Group Box[^]

Posted 15-Oct-14 4:16am

Peter Leow

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ugo.marchesini · Accepted Answer · 2014-10-15T04:22:00

First solution :

VB

Private Sub cbxAll_CheckedChanged(sender As Object, e As System.EventArgs) Handles cbxAll.CheckedChanged                                                                      
    If cbxAll.Checked = True Then
        cbx01.Checked = True
        cbx02.Checked = True
        ' 3 .. 38
        cbx39.Checked = True
    Else
        cbx01.Checked = False
        cbx02.Checked = False
        ' 3 .. 38
        cbx39.Checked = False
    End If
End Sub

Second solution :
with the same event on checkbox(All) make a loop over all control of the form that match the name of the other 39 , if you name them in a proper way you can modify their property (.Checked = True/False).

Hope help

Member 11155542 · Accepted Answer · 2014-10-16T00:34:00

Thank yoy very much for all your response, I've got the answer that I wanted by Bjorn-Roger Kringsja and it's:

VB

Private Sub CheckBoxAll_CheckedChanged(sender As Object, e As EventArgs) Handles CheckAll.CheckedChanged
    Array.ForEach(Me.GroupBox1.Controls.OfType(Of CheckBox).ToArray(), Sub(box As CheckBox) box.Checked = Me.CheckAll.Checked)
End Sub

Single checkbox to check multiple checkboxes in Visual Basic

4 solutions

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Solution 1

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