使用表单标签runat = server动态添加文本框 [英] adding textbox dynamically with form tag runat=server

问题描述

嗨！
我想使用VB.net语言在ASP.net中动态添加文本框.我正在使用页面加载"方法进行此操作:

Hi!
I want to add a textbox dynamically in ASP.net using the VB.net language. I''m doing this on in the "page load" method:

Dim tb As New TextBox
tb.Width = 150
tb.Height = 18
tb.TextMode = TextBoxMode.SingleLine
tb.Text = "Enter Title "
Me.Controls.Add(tb)

我一直在收到这样的错误:

I''m keep on getting an error like this :

System.Web.HttpException: Control 'ctl02' of type 'TextBox' must be placed inside a form tag with runat=server.

如何将这个动态文本框放置在表单标签内?

How can place this dynamic textbox inside a form tag?

Please assist me in this!

推荐答案

在您的标记文件中，您需要这样的形式:

In your markup file you need a form like so:

...
<form id="myForm" runat="server" ... > <!-- add other attributes to form tag as needed -->
</form>
...

并在文件后面的代码中执行以下操作:

and in your code behind file do this:

Dim tb As New TextBox
tb.Width = 150
tb.Height = 18
tb.TextMode = TextBoxMode.SingleLine
tb.Text = "Enter Title "
myForm.Controls.Add(tb) ' myForm is the empty form you created within your markup file.

那应该可以解决的！

问候，

—MRB

That should do the trick!

Regards,

—MRB

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