107 lines
2.9 KiB
C#
107 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Data;
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namespace FineUI.Examples.dropdownlist
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{
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public partial class dropdownlist_datatable : PageBase
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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BindDataTableToDropDownList();
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}
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}
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#region BindDataTableToDropDownList
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private void BindDataTableToDropDownList()
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{
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DataTable table = new DataTable();
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DataColumn column1 = new DataColumn("MyText", typeof(String));
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DataColumn column2 = new DataColumn("MyValue", typeof(String));
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table.Columns.Add(column1);
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table.Columns.Add(column2);
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DataRow row = table.NewRow();
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row[0] = "选项 1";
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row[1] = "1";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 2";
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row[1] = "2";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 3";
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row[1] = "3";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 4";
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row[1] = "4";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 5";
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row[1] = "5";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 6";
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row[1] = "6";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 7";
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row[1] = "7";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 8";
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row[1] = "8";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "选项 9";
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row[1] = "9";
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table.Rows.Add(row);
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row = table.NewRow();
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row[0] = "这是一个很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长很长的可选项";
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row[1] = "10";
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table.Rows.Add(row);
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DropDownList1.DataTextField = "MyText";
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DropDownList1.DataValueField = "MyValue";
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DropDownList1.DataSource = table;
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DropDownList1.DataBind();
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}
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#endregion
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#region Events
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protected void btnSelectItem6_Click(object sender, EventArgs e)
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{
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DropDownList1.SelectedValue = "6";
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}
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protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (DropDownList1.SelectedItem != null)
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{
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labResult.Text = String.Format("选中项：{0}（值：{1}）", DropDownList1.SelectedItem.Text, DropDownList1.SelectedValue);
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}
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}
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#endregion
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}
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}
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