Asp.Net用户控件编程实例
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Asp.Net用户控件编程实例
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新建一個(gè)Asp.Net空網(wǎng)站;加入一個(gè)Default頁;
添加一個(gè)web用戶控件;
解決方案結(jié)構(gòu)如下;
用戶控件頁面添加一個(gè)Label;
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WebUserControl.ascx.cs" Inherits="WebUserControl" %><asp:Label ID="Label1" runat="server" Height="30px" Width="200px"></asp:Label>WebUserControl.ascx.cs加入2個(gè)方法;
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;public partial class WebUserControl : System.Web.UI.UserControl {protected void Page_Load(object sender, EventArgs e){}public void MyAdd(int a, int b){Label1.Text = "和:" + Convert.ToString(a + b);}public void MySub(int a, int b){Label1.Text = "差:" + Convert.ToString(a - b);}}?Default頁面加入用戶控件,
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><%@ Register Src="WebUserControl.ascx" TagName="WebUserControl" TagPrefix="uc1" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title></title> </head> <body><form id="form1" runat="server"><div><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>+<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="相加" /><br /><asp:TextBox ID="TextBox3" runat="server"></asp:TextBox> -<asp:TextBox ID="TextBox4"runat="server"></asp:TextBox><asp:Button ID="Button2" runat="server" Text="相減" OnClick="Button2_Click" /><br /><uc1:WebUserControl id="WebUserControl1" runat="server"></uc1:WebUserControl></div></form> </body> </html>Default頁面cs文件調(diào)用用戶控件方法;
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;public partial class _Default : System.Web.UI.Page {protected void Page_Load(object sender, EventArgs e){}protected void Button1_Click(object sender, EventArgs e){WebUserControl1.MyAdd(Convert.ToInt16(TextBox1.Text), Convert.ToInt16(TextBox2.Text));}protected void Button2_Click(object sender, EventArgs e){WebUserControl1.MySub(Convert.ToInt16(TextBox3.Text), Convert.ToInt16(TextBox4.Text));} }執(zhí)行情況如下;
下面來進(jìn)一步;
在用戶控件增加三個(gè)方法,分別獲取隨機(jī)數(shù)、獲取1-100之間隨機(jī)數(shù)、獲取GUID;結(jié)果都放到Label1;
public void MyRand(){Random rd = new Random();int i = rd.Next();Label1.Text = i.ToString();}public void MyRand100(){Random rd = new Random();int i = rd.Next()%100+1;Label1.Text = i.ToString();}public void MyGuid(){Label1.Text=Guid.NewGuid().ToString();}Default.aspx加入三個(gè)按鈕;
<asp:Button ID="Button3" runat="server" Text="獲取隨機(jī)數(shù)" OnClick="Button3_Click" /><asp:Button ID="Button4" runat="server" Text="獲取1-100之間隨機(jī)數(shù)" OnClick="Button4_Click" /><asp:Button ID="Button5" runat="server" Text="獲取GUID" OnClick="Button5_Click" />Default.aspx.cs調(diào)用用戶控件方法;
protected void Button3_Click(object sender, EventArgs e){WebUserControl1.MyRand();}protected void Button4_Click(object sender, EventArgs e){WebUserControl1.MyRand100();}protected void Button5_Click(object sender, EventArgs e){WebUserControl1.MyGuid();}運(yùn)行情況如下;
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