基本的Web控件四

2019-11-14 15:48:02

字体：大中小

来源：转载

供稿：网友

基本的Web控件用法二

ListBox控件

　　页面布局：

<div>        <h1>ListBox控件</h1>        学生列表：        <br/>        <asp:ListBox ID="ListBox1" runat="server" Width="100" Height="100" OnSelectedIndexChanged="ListBox1_SelectedIndexChanged“AutoPostBack="true">        </asp:ListBox>        <br />        <asp:Label ID="Label1" runat="server" Text=""></asp:Label>        <br/></div>

　　后台代码：

PRotected void Page_Load(object sender, EventArgs e){            if (!Page.IsPostBack)            {                //生成数据                DataSet ds = new DataSet();                ds.Tables.Add("stu");                ds.Tables["stu"].Columns.Add("stuNo", typeof(int));                ds.Tables["stu"].Columns.Add("stuName", typeof(string));                ds.Tables["stu"].Columns.Add("stuScore", typeof(int));                ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });                //绑定到ListBox控件                this.ListBox1.DataSource = ds.Tables["stu"];                this.ListBox1.DataValueField = "stuNo";                this.ListBox1.DataTextField = "stuName";                this.ListBox1.DataBind();            }        }
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e){            this.Label1.Text = "你选择的学生是：" + this.ListBox1.SelectedItem.Text.ToString();}

DropDownList控件

　　页面布局：

<div>        <h1>DropDownList控件</h1>        学生列表：        <br/>        <asp:DropDownList ID="DropDownList1" Font-Size="Large" runat="server" AutoPostBack="true" Width="146px" 
                             OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">        </asp:DropDownList>        <br/>        <asp:Label ID="Label1" runat="server"></asp:Label>        <hr/>        <hr/></div>

　　后台代码：

protected void Page_Load(object sender, EventArgs e){            if (!Page.IsPostBack)            {                //生成数据                DataSet ds = new DataSet();                ds.Tables.Add("stu");                ds.Tables["stu"].Columns.Add("stuNo", typeof(int));                ds.Tables["stu"].Columns.Add("stuName", typeof(string));                ds.Tables["stu"].Columns.Add("stuScore", typeof(int));                ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });                //绑定到ListBox控件                this.DropDownList1.DataSource = ds.Tables["stu"];                this.DropDownList1.DataValueField = "stuNo";                this.DropDownList1.DataTextField = "stuName";                this.DropDownList1.DataBind();            }}protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e){            this.Label1.Text = "你选择的学生是：" + this.DropDownList1.SelectedItem.Text.ToString();}

CheckBoxList控件

　　页面布局：

<div>        <h1>CheckBoxList控件</h1>        <asp:CheckBoxList ID="CheckBoxList1" runat="server" OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged"
                      AutoPostBack="true" Width="180px">        </asp:CheckBoxList>        <br/>        <asp:Label ID="Label1" runat="server"></asp:Label>        <hr/>        <hr/></div>

　　后台代码：

protected void Page_Load(object sender, EventArgs e){            if (!Page.IsPostBack)            {                //生成数据                DataSet ds = new DataSet();                ds.Tables.Add("stu");                ds.Tables["stu"].Columns.Add("stuNo", typeof(int));                ds.Tables["stu"].Columns.Add("stuName", typeof(string));                ds.Tables["stu"].Columns.Add("stuScore", typeof(int));                ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });                //绑定到ListBox控件                this.CheckBoxList1.DataSource = ds.Tables["stu"];                this.CheckBoxList1.DataValueField = "stuNo";                this.CheckBoxList1.DataTextField = "stuName";                this.CheckBoxList1.DataBind();            }}

RadioButtonList控件

　　页面布局：

<div>        <h1>RadioButtonList控件</h1>        <asp:RadioButtonList ID="RadioButtonList1" runat="server" Width="180px" AutoPostBack="true">        </asp:RadioButtonList>        <hr/>        <hr/</div>

　　后台代码：

protected void Page_Load(object sender, EventArgs e){            if (!Page.IsPostBack)            {                //生成数据                DataSet ds = new DataSet();                ds.Tables.Add("stu");                ds.Tables["stu"].Columns.Add("stuNo", typeof(int));                ds.Tables["stu"].Columns.Add("stuName", typeof(string));                ds.Tables["stu"].Columns.Add("stuScore", typeof(int));                ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });                //绑定到ListBox控件                this.RadioButtonList1.DataSource = ds.Tables["stu"];                this.RadioButtonList1.DataValueField = "stuNo";                this.RadioButtonList1.DataTextField = "stuName";                this.RadioButtonList1.DataBind();            }}

BulletedList控件

　　页面布局：

<div>        <h1>BulletedList控件</h1>        <asp:BulletedList ID="BulletedList1" runat="server" BulletStyle="Square">        </asp:BulletedList>        <hr/>        <hr/></div>

　　后台代码：

protected void Page_Load(object sender, EventArgs e)        {            if (!Page.IsPostBack)            {                //生成数据                DataSet ds = new DataSet();                ds.Tables.Add("stu");                ds.Tables["stu"].Columns.Add("stuNo", typeof(int));                ds.Tables["stu"].Columns.Add("stuName", typeof(string));                ds.Tables["stu"].Columns.Add("stuScore", typeof(int));                ds.Tables["stu"].Rows.Add(new object[] { 1, "王聪", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 2, "李宁", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 3, "菡萏", 100 });                ds.Tables["stu"].Rows.Add(new object[] { 4, "青松", 100 });                //绑定到ListBox控件                this.BulletedList1.DataSource = ds.Tables["stu"];                this.BulletedList1.DataValueField = "stuNo";                this.BulletedList1.DataTextField = "stuName";                this.BulletedList1.DataBind();            }}

Table控件

　　页面布局：

<div>        <h1>Table控件</h1>        动态操作表控件<br/>        行数：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>        列数：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>        <br/>        <asp:Button ID="Button1" runat="server" Text="动态生成" OnClick="Button1_Click" />        <br/>        <asp:Table ID="Table1" runat="server" Caption="动态操作表控件" CellPadding="1" CellSpacing="1" GridLines="Both">                  </asp:Table>         <hr/>        <hr/></div>

　　后台代码：

protected void Button1_Click(object sender, EventArgs e){            int rowNum = 0;         //定义行数            int rowCount = 0;       //定义当前行数            int cellNum = 0;        //定义列数            int cellCount = 0;      //定义当前列数            //获取用户输入的行数和列数            try            {                rowNum = int.Parse(TextBox1.Text);                cellNum = int.Parse(TextBox2.Text);            }            catch            {                rowCount = 1;                cellCount = 1;            }            for (rowCount = 1; rowCount <= rowNum; rowCount++)            {                //为Table1表添加一行                TableRow tRow = new TableRow();                Table1.Rows.Add(tRow);                for (cellCount = 1; cellCount <= cellNum; cellCount++)                {                    //创建单元格并添加到表中                    TableCell tCell = new TableCell();                    tRow.Cells.Add(tCell);                    //添加一个用来包含文本的Literal类，作为控件添加到单元格中                    tCell.Controls.Add(new LiteralControl("当前位置："));                    //创建一个Hyperlink控件并把它添加到单元格中                    System.Web.UI.WebControls.HyperLink h = new HyperLink();                    h.Text = rowCount + "：" + cellCount;                    h.NavigateUrl = "http://www.microsoft.com/net";                    tCell.Controls.Add(h);                 }            }}

原文链接：

http://blog.csdn.net/spilledlight/article/details/48712381

上一篇：ASP.NET验证控件一

下一篇：基本的Web控件三