47 lines
1.2 KiB
C#
47 lines
1.2 KiB
C#
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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_emptyvalue : 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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}
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}
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protected void btnSelectItem6_Click(object sender, EventArgs e)
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{
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DropDownList1.SelectedValue = "";
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}
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protected void btnGetSelection_Click(object sender, EventArgs e)
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{
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Result();
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}
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private void Result()
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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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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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}
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}
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