How to checked all check box by clicking on check box using panel control ?

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private void chkMaster_CheckedChanged(object sender, EventArgs e)
{
bool chkMaster = (((System.Windows.Forms.CheckBox(sender)).Checked);
checkBoxCreateFolder.Checked = chkMaster;
checkBoxCredentials.Checked = chkMaster;
checkBoxIIS.Checked = chkMaster;
checkBoxNIComment.Checked = chkMaster;
checkBoxRemove.Checked = chkMaster;
checkBoxRemove.Checked = chkMaster;
checkBoxRemove.Checked = chkMaster;
checkBoxUncomment.Checked = chkMaster;
checkBoxUninstall.Checked = chkMaster;
checkBoxUpdateHelper.Checked = chkMaster;

Posted 19-Feb-15 1:34am

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Peter Leow · Answer 1 · 2015-02-19T01:52:00

Solution 1

You are almost there:

bool chkMaster = ((CheckBox)sender).Checked;

Posted 19-Feb-15 1:52am

Peter Leow

Updated 19-Feb-15 1:55am

v2

BillWoodruff · Answer 2 · 2015-02-19T02:43:00

Assuming that I wanted to check or un-check all the CheckBoxes in a container Control, like a Panel:

C#

private void SetAllCheckBoxesCheckState(Control container, bool isChecked)
{
    foreach (CheckBox cbx in container.Controls.OfType<CheckBox>())
    {
        cbx.Checked = isChecked;
    }
}

// sample use: SetAllCheckBoxesCheckState(panel1, true);

Note that using Controls.OfType<SomeControlType> only returns the top-level Controls in its target container whose Type matches (it is not recursive): if you have a CheckBox control in a panel within a Panel, .OfType will not find it.