使用c#一键检查复选框列表中的所有复选框
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/14051494/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Check all checkboxes in checkboxlist with one click using c#
提问by Brenelyn
I want to have a button that once clicked, it will select all checkboxes in my checklistbox. I've search the possible answers but I always see examples for asp.net and javascript. I am using Windows form in c#. Thank you for any response.
我想要一个按钮，一旦点击，它将选择我的清单框中的所有复选框。我已经搜索了可能的答案，但我总是看到 asp.net 和 javascript 的示例。我在 c# 中使用 Windows 窗体。感谢您的任何回应。
采纳答案by SekaiCode
for (int i = 0; i < checkedListBox1.Items.Count; i++)
{
checkedListBox1.SetItemChecked(i, true);
}
回答by patrick choi
Try this:
尝试这个：
foreach(Control c in this.Controls) {
if (c.GetType() == typeof(CheckBox)) {
((CheckBox)c).Checked = true;
}
}
回答by DavidRomo
Try this...
尝试这个...
protected void chk_CheckedChanged(object sender, EventArgs e)
{
CheckBox[] boxes = new CheckBox[7];
boxes[0] = this.CheckBoxID;
boxes[1] = this.CheckBoxID;
boxes[2] = this.CheckBoxID;
boxes[3] = this.CheckBoxID;
boxes[4] = this.CheckBoxID;
boxes[5] = this.CheckBoxID;
boxes[6] = this.CheckBoxID; //you can add checkboxes as you want
CheckBox chkBox = (CheckBox)sender;
string chkID = chkBox.ID;
bool allChecked = true;
if (chkBox.Checked == false)
allChecked = false;
foreach (CheckBox chkBoxes in boxes)
{
if (chkBox.Checked == true)
{
if (chkBoxes.Checked == false)
allChecked = false;
}
}
this.CheckBoxIDALL.Checked = allChecked; //Here place the main CheckBox
}
回答by VAMSHI PAIDIMARRI
Call a method from code behind in C# and write this piece of code, then you could be able to check/uncheck them. This checks or uncheck all the check boxes present in the checkboxlist. Hope it might help.
从 C# 中的代码后面调用一个方法并编写这段代码，然后您就可以选中/取消选中它们。这将选中或取消选中复选框列表中存在的所有复选框。希望它可能会有所帮助。
foreach (ListItem item in CheckBoxList.Items)
{
item.Selected = true;
}
回答by Chen10b
what I did is I put it inside of a tableLayoutPanel, I fixed all the checkboxs in the 3rd column and i added the event:
我所做的是将它放在 tableLayoutPanel 中，我修复了第 3 列中的所有复选框并添加了事件：
private void cbCheckAllCHECKBOXs_CheckedChanged(objects sender, EventArgs e)
{
if (cbCheeckAllCHECKBOXs.Checked)
{
for (int i = 0; i < tlpCHECKBOXsControlPanel.RowCount; i++)
{
((System.Windows.Forms.CheckBox)(tlpCHECKBOXsControlPanel.GetControlFromPosition(3, i))).Checked = true;
}
}
}
回答by djv
After arriving at this question multiple times, I have decided I will solve it for myself once and for all, with an extension method.
多次到达这个问题后，我决定我将一劳永逸地解决它，使用扩展方法。
public static class Extensions
{
public static void CheckAll(this CheckedListBox checkedListBox, bool check)
{
for (int i = 0; i < checkedListBox.Items.Count; i++)
checkedListBox.SetItemChecked(i, check);
}
}
MyCheckedListBox.CheckAll(true);
