轉自:http://blog.csdn.net/Sandy945/article/details/4397142
GridView動态添加模闆列 這個case 經常會遇到,網上相關資料也不少,
但是關于如何動态為添加在模闆列中的控件添加事件卻沒有。本文就是為解決這種情況而寫。
代碼如下:
GridViewTemplateDemo.aspx
[xhtml] view plain copy
- <%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewTemplateDemo.aspx.cs" Inherits="GridView_GridViewTemplateDemo" %>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml" >
- <head id="Head1" runat="server">
- <title>GridView動态添加模闆列的例子</title>
- </head>
- <body>
- <form id="form1" runat="server">
- <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
- </asp:GridView>
- </form>
- </body>
- </html>
GridViewTemplateDemo.aspx.cs
[c-sharp] view plain copy
- using System;
- using System.Data;
- using System.Configuration;
- using System.Collections;
- using System.Web;
- using System.Web.Security;
- using System.Web.UI;
- using System.Web.UI.WebControls;
- using System.Web.UI.WebControls.WebParts;
- using System.Web.UI.HtmlControls;
- public partial class GridView_GridViewTemplateDemo : System.Web.UI.Page
- {
- private DataTable getDateTable()
- {
- DataTable dt = new DataTable();
- dt.Columns.Add(new DataColumn("ID", typeof(Int32)));
- dt.Columns.Add(new DataColumn("Name", typeof(String)));
- DataRow dr = dt.NewRow();
- dr[0] = 1;
- dr[1] = "01";
- dt.Rows.Add(dr);
- dr = dt.NewRow();
- dr[0] = 2;
- dr[1] = "01011";
- dt.Rows.Add(dr);
- dr = dt.NewRow();
- dr[0] = 3;
- dr[1] = "0120";
- dt.Rows.Add(dr);
- dr = dt.NewRow();
- dr[0] = 4;
- dr[1] = "01001";
- dt.Rows.Add(dr);
- dr = dt.NewRow();
- dr[0] = 5;
- dr[1] = "0105";
- dt.Rows.Add(dr);
- return dt;
- }
- protected override void OnInit(EventArgs e)
- {
- TemplateField customField = new TemplateField();
- customField.ShowHeader = true;
- customField.HeaderTemplate = new GridViewTemplate(DataControlRowType.Header, "動态添加列");
- GridViewTemplate gvt = new GridViewTemplate(DataControlRowType.DataRow, "lbtn", "Name");
- gvt.eh += new GridViewTemplate.EventHandler(lbtn_Click);
- customField.ItemTemplate = gvt;
- GridView1.Columns.Add(customField);
- base.OnInit(e);
- }
- protected void Page_Load(object sender, EventArgs e)
- {
- if (!IsPostBack)
- {
- GridView1.DataSource = getDateTable();
- GridView1.DataBind();
- }
- }
- public void lbtn_Click(object sender, EventArgs e)
- {
- ClientScript.RegisterStartupScript(GetType(), "test", "alert('ok');", true);
- }
- }
- public class GridViewTemplate : ITemplate
- {
- public delegate void EventHandler(object sender, EventArgs e);
- public event EventHandler eh;
- private DataControlRowType templateType;
- private string columnName;
- private string controlID;
- public GridViewTemplate(DataControlRowType type, string colname)
- {
- templateType = type;
- columnName = colname;
- }
- public GridViewTemplate(DataControlRowType type,string controlID, string colname)
- {
- templateType = type;
- this.controlID = controlID;
- columnName = colname;
- }
- public void InstantiateIn(System.Web.UI.Control container)
- {
- switch (templateType)
- {
- case DataControlRowType.Header:
- Literal lc = new Literal();
- lc.Text = columnName;
- container.Controls.Add(lc);
- break;
- case DataControlRowType.DataRow:
- LinkButton lbtn = new LinkButton();
- lbtn.ID = this.controlID;
- if (eh != null)
- {
- lbtn.Click += new System.EventHandler(eh);
- }
- lbtn.DataBinding+=new System.EventHandler(lbtn_DataBinding);
- container.Controls.Add(lbtn);
- break;
- default:
- break;
- }
- }
- void lbtn_DataBinding(object sender, EventArgs e)
- {
- LinkButton lbtn = sender as LinkButton;
- if (lbtn != null)
- {
- GridViewRow container = lbtn.NamingContainer as GridViewRow;
- if (container != null)
- {
- object dataValue = DataBinder.Eval(container.DataItem, columnName);
- if (dataValue != DBNull.Value)
- {
- lbtn.Text = dataValue.ToString();
- }
- }
- }
- }
- }