在ASP.NET中动态添加asp：textbox

Question

I have an aspx page made with ASP.NET Web Forms. What i need to create is two asp:textbox fields. I want to be able to dynamically add two new fields below that with the press of a button.

So basically i want to be able to add an infinite amount of "new" textfields. But i'm not sure how to do this in ASP.NET.

Is there perhaps a way to create an arrat of those textfields? So that when a form is posted i can easily iterate over them?

How can i do this?

Answer 1

In your aspx file:

 <asp:TextBox runat="server" ID="textbox1"/>
 <asp:TextBox runat="server" ID="textbox2"/>

 <asp:Button runat="server" ID="btnAdd" OnClick="btnAdd_Click" />
 <asp:PlaceHolder runat="server" ID="ph" />

In your aspx.cs file:

 protected void btnAdd_Click(object sender, EventArgs e)
 {
      TextBox tb1 = new TextBox();
      TextBox tb2 = new TextBox();
      ph.Controls.Add(tb1);
      ph.Controls.Add(tb2);
 }

Answer 2

You can add this fields and make them hidden(invisible). And you can show fields on button click (with javascript). Dynamically adding serverside controls is problem.