如何通过使用面板控件单击复选框来选中所有复选框？ [英] How to checked all check box by clicking on check box using panel control ?

问题描述

private void chkMaster_CheckedChanged（object sender，EventArgs e）

{

bool chkMaster =（（（System.Windows.Forms.CheckBox（sender））。已检查） ;

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;

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;

推荐答案

你差不多了：

You are almost there:

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

假设我想检查或取消检查容器Control中的所有CheckBox，如Panel：

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

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

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

请注意，使用Controls.OfType< SomeControlType>只返回其类型匹配的目标容器中的顶级控件（它不是递归的）：如果在Panel中的面板中有一个CheckBox控件，.OfType将找不到它。

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.

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