在ASP.NET（VB）上动态创建标签

Question

我想在我的页面dynamicly中创建标签，例如用户将choose放入一个文本框中的标签数量，并且我将显示带有.text = “XYZ”。

谢谢。

Answer 1

的快速和肮脏的方法（本例中增加了10个标签和文字的占位符ASP.NET页面上：

Dim c As Integer = 0 
While c < 10 
    Dim lab As New Label() 
    Dim ltr As New Literal() 
    lab.Text = c.ToString() 
    ltr.Text = "<br/>" 
    PlaceHolder1.Controls.Add(lab) 
    PlaceHolder1.Controls.Add(ltr) 
    C+=1 
End While 

Answer 2

看看使用Repeater控件：

Using the ASP.NET Repeater Control

Data Repeater Controls in ASP.NET

Answer 3

有许多事情需要做，以使这项工作，但简单地动态创建控件并将它们添加页面，您将需要一个Placeholder您的ASPX页面上：

<asp:TextBox ID="txtLabelCount" runat="server" /> 
<asp:Button ID="btnCreate" runat="server" Text="Create" /><br /> 
<asp:Placeholder ID="PlaceHolder1" runat="server" /> 

然后，在btnCreate的单击事件处理程序：

' Number of labels to create. txtLabelCount should be validated to ensure only integers are passed into it 
Dim labelCount As Integer = txtLabelCount.Text 

For i As Integer = 0 To labelCount - 1 
    ' Create the label control and set its text attribute 
    Dim Label1 As New Label 
    Label1.Text = "XYZ" 

    Dim Literal1 As New Literal 
    Literal1.Text = "<br />" 

    ' Add the control to the placeholder 
    PlaceHolder1.Controls.Add(Label1) 
    PlaceHolder1.Controls.Add(Literal1) 
Next