本文整理汇总了C#中System.Windows.Forms.DataGridViewCheckBoxColumn.ThreeState属性的典型用法代码示例。如果您正苦于以下问题：C# DataGridViewCheckBoxColumn.ThreeState属性的具体用法？C# DataGridViewCheckBoxColumn.ThreeState怎么用？C# DataGridViewCheckBoxColumn.ThreeState使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Windows.Forms.DataGridViewCheckBoxColumn的用法示例。
在下文中一共展示了DataGridViewCheckBoxColumn.ThreeState属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DataGridView
//引入命名空间
using System;
using System.IO;
using System.Collections.Generic;
using System.Windows.Forms;
public class TriValueVirtualCheckBox:Form
{
DataGridView dataGridView1 = new DataGridView();
const int initialSize = 500;
Dictionary<int, LightStatus> store
= new Dictionary<int, LightStatus>();
public TriValueVirtualCheckBox() : base()
{
Text = this.GetType().Name;
int index = 0;
for(index=0; index<=initialSize; index++)
store.Add(index, LightStatus.Unknown);
Controls.Add(dataGridView1);
dataGridView1.VirtualMode = true;
dataGridView1.AllowUserToDeleteRows = false;
dataGridView1.CellValueNeeded += new
DataGridViewCellValueEventHandler(dataGridView1_CellValueNeeded);
dataGridView1.CellValuePushed += new
DataGridViewCellValueEventHandler(dataGridView1_CellValuePushed);
dataGridView1.Columns.Add(CreateCheckBoxColumn());
dataGridView1.Rows.AddCopies(0, initialSize);
}
private DataGridViewCheckBoxColumn CreateCheckBoxColumn()
{
DataGridViewCheckBoxColumn dataGridViewCheckBoxColumn1
= new DataGridViewCheckBoxColumn();
dataGridViewCheckBoxColumn1.HeaderText = "Lights On";
dataGridViewCheckBoxColumn1.TrueValue = LightStatus.TurnedOn;
dataGridViewCheckBoxColumn1.FalseValue = LightStatus.TurnedOff;
dataGridViewCheckBoxColumn1.IndeterminateValue
= LightStatus.Unknown;
dataGridViewCheckBoxColumn1.ThreeState = true;
dataGridViewCheckBoxColumn1.ValueType = typeof(LightStatus);
return dataGridViewCheckBoxColumn1;
}
#region "data store maintance"
private void dataGridView1_CellValueNeeded(object sender,
DataGridViewCellValueEventArgs e)
{
e.Value = store[e.RowIndex];
}
private void dataGridView1_CellValuePushed(object sender,
DataGridViewCellValueEventArgs e)
{
store[e.RowIndex] = (LightStatus) e.Value;
}
#endregion
[STAThreadAttribute()]
public static void Main()
{
Application.Run(new TriValueVirtualCheckBox());
}
}
public enum LightStatus
{
Unknown,
TurnedOn,
TurnedOff
};