checkcolumn.cs

ASP C#代码实例 适合初学人士学习使用

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace Example_12_5.ColumnTemplates
{
	public class CheckBoxColumn :System.Web.UI.WebControls.TemplateColumn
	{
		/// <summary>
		/// 初始化CheckBoxColumn.
		/// </summary>
		public CheckBoxColumn(String Name)
		{
			//设置控件为只读
			viewItem = new CheckBoxItem(false,Name); // SAW was false
			this.ItemTemplate = viewItem as ITemplate;

			//设置控件为可编辑的
			editItem = new CheckBoxItem(true,Name);
			this.EditItemTemplate = editItem as ITemplate;
		}

		/// <summary>
		/// 初始化CheckBoxColumn，并设置控件的回传属性
		/// </summary>		
		public CheckBoxColumn(bool ImmediatePostback,String Name)
		{
			//设置控件为只读
			viewItem = new CheckBoxItem(ImmediatePostback,Name);
			this.ItemTemplate = viewItem as ITemplate;

			//设置控件为可编辑的
			editItem = new CheckBoxItem(true,Name);
			this.EditItemTemplate = editItem as ITemplate;

			AutoPostBack = ImmediatePostback;
		}

		/// <summary>
		/// 设置控件CheckBoxColumn的事件
		/// </summary>		
		public event EventHandler CheckedChanged
		{
			add
			{
				viewItem.CheckedChanged += value;
				editItem.CheckedChanged += value;
			}
			remove
			{
				viewItem.CheckedChanged -= value;
				editItem.CheckedChanged -= value;
			}
		}

		/// <summary>
		/// 定义控件的AutoPostBack属性
		/// </summary>
		public bool AutoPostBack
		{
			set
			{
				viewItem.AutoPostBack = value;
				editItem.AutoPostBack = value;
			}
			get
			{
				return viewItem.AutoPostBack;
			}
		}

		/// <summary>
		/// 定义控件的DataField属性
		/// </summary>
		public string DataField
		{
			get
			{
				return viewItem.DataField;
			}
			set
			{
				viewItem.DataField = value;
				editItem.DataField = value;
			}
		}

		/// <summary>
		/// 定义控件的viewItem
		/// </summary>
		private CheckBoxItem viewItem;

		/// <summary>
		/// 定义控件的editItem
		/// </summary>
		private CheckBoxItem editItem;
	}
}