c#Gridview动态增加新列求助

[a312428841]

用VS2010做一个c#的界面

这是GridView已经做好的页面，但是不是动态绑定，还有要求修改成下面格式的页面，还要求动态绑定，小弟实在没辙了，请各路大神帮忙提供个思路~或者方法就行




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[xiao_2215053674]

如何在GridView中动态添加模板列 ICollection CreateDataSource() { DataTable dt = new DataTable();//创建一个DataTable对象 DataRow dr; //定义框架 dt.Columns.Add(new DataColumn("id", typeof(Int32))); dt.Columns.Add(new DataColumn("text", typeof(string))); for (int i = 0; i < 6; i++)//循环遍历并添充DataTable内容 { dr = dt.NewRow(); dr[0] = i; dr[1] = "列表" + i.ToString(); dt.Rows.Add(dr); } DataView dv = new DataView(dt); return dv; } public class GridViewTemplate : ITemplate//定义一个继承自ITemplate接口的类 { private DataControlRowType dcrType; private string columnName; public GridViewTemplate(DataControlRowType type, string colname) { dcrType = type; columnName = colname; } public void InstantiateIn(System.Web.UI.Control container) { switch (dcrType) { case DataControlRowType.Header: Literal literal = new Literal(); literal.Text = columnName; container.Controls.Add(literal); break; case DataControlRowType.DataRow: DropDownList ddl = new DropDownList(); ddl.ID = "dropdownlist"; ddl.AppendDataBoundItems = true; ddl.Items.Add(new ListItem("-----请选择------", "")); ddl.Items.Add(new ListItem("京广高速公路时刻表", "98")); ddl.Items.Add(new ListItem("京昆高速公路时刻表", "368")); ddl.Items.Add(new ListItem("京城高速公路时刻表", "698")); container.Controls.Add(ddl); break; default: break; } } } protected void Button1_Click(object sender, EventArgs e) { for (int index = 1; index < GridView1.Columns.Count; index++) { GridView1.Columns[index].Visible = false; } for (int i = 0; i < Convert.ToInt32(DropDownList1.SelectedValue); i++) { TemplateField tf = new TemplateField(); tf.ShowHeader = true; tf.HeaderTemplate = new GridViewTemplate(DataControlRowType.Header, "动态添加列"); tf.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, ""); GridView1.Columns.Add(tf); GridView1.DataSource = CreateDataSource(); GridView1.DataBind(); } }