asp.net动态添加控件和获取控件的值

asp.net动态添加控件和获取控件的值
有很多时候我们需要动态的添加控件，以适应客户的需求，下面的小例子演示了如何动态的添加控件和获取控件的值。
1、添加控件

 protected void Page_Load(object sender, EventArgs e)
    {
        int counts = 4;//假设添加四个控件
        for (int i = 1; i <= counts; i++)
        {
            TableRow row = new TableRow();
            TableCell cellHead = new TableCell();
            TableCell cellContent = new TableCell();
            Label LabelAuditing = new Label();
            TextBox TextAuditing = new TextBox();
            LabelAuditing.ID = "LabelAuditing" + i.ToString();
            LabelAuditing.Text = "LabelAuditing" + i.ToString();
            TextAuditing.ID = "TextAuditing" + i.ToString();
            TextAuditing.Height = 18;
            cellHead.Controls.Add(LabelAuditing);
            cellContent.Controls.Add(TextAuditing);             
            cellHead.BackColor = System.Drawing.Color.FromName("#EFEFEF");
            cellHead.BorderWidth = 1;
            cellHead.BorderColor = System.Drawing.Color.FromName("#CCCCCC");
            cellHead.HorizontalAlign = HorizontalAlign.Left;
            cellHead.Width = 60;
            cellContent.BorderColor = System.Drawing.Color.FromName("#CCCCCC");
            cellContent.BackColor = System.Drawing.Color.FromName("#EFEFEF");
            cellContent.BorderWidth =1;
            cellContent.HorizontalAlign = HorizontalAlign.Left;
            cellContent.Width = 100;
            row.Cells.Add(cellHead);
            row.Cells.Add(cellContent);
            row.Height = 22;
            this.Table1.BorderColor = System.Drawing.Color.FromName("#CCCCCC");            
            this.Table1.Width = 400;
            this.Table1.Rows.Add(row);
        }
    }

2、获取控件的值

protected void Button1_Click(object sender, EventArgs e)
    {
        string str = string.Empty;
        for (int i = 1; i <= 4; i++)
        {
            str += ((TextBox)this.FindControl("TextAuditing" + i.ToString())).Text+"<br>";//获取控件的值
        }
        this.LabelMsg.Text = str;
    }

3、前台的代码

<form id="form1" runat="server">
    <div>
        <br />
        <table border="0" cellpadding="0" cellspacing="0" style="width: 400px; height: 134px">
            <tr>
                <td class="tabnotop"  style="height: 18px">
        <asp:Table ID="Table1" runat="server" CellPadding="0" CellSpacing="0" Height="56px"
            Width="142px" BorderWidth="1px">
        </asp:Table>
                </td>
            </tr>
            <tr>
                <td style="height: 29px; text-align: center">
                    <asp:Button ID="Button1" runat="server" CssClass="btnew" OnClick="Button1_Click"
                        Text="确定" /></td>
            </tr>
        </table>
        <asp:Label ID="LabelMsg" runat="server"></asp:Label><br />
        &nbsp;<br />
    
    </div>
    </form>

4、运行结果