TextBox Auto Expandable in ASP.NET

Question

I have a TextBox like this;

<asp:TextBox id="TextBox1" TextMode="SingleLine" runat="server" />

Is there any way making Auto Expandable without Javascript or any other technology?

Can i do that just with ASP.NET ? (Some properties maybe)

OR what is the easiest way?

Answer 1

如果计划使用ajax控件工具包，则可以使用ASP.NET AJAX ResizableControl Extender。（我认为内部使用的是javascript），但我不知道其他任何非javascript方式。

Answer 2

您可以使用动态服务器标签来设置宽度。

Width='<%# (Eval("DataSourceField").ToString().Length * 8)%>'

Answer 3

protected void TextBox1_TextChanged(object sender, EventArgs e)
    {
        int i = TextBox1.Text.Length;
        int rowsize = (i / 10)+2;
        TextBox1.Rows = rowsize;
        TextBox1.Focus();
    }

Try This...........

Answer 4

You only can make it without javascript if you already know the content and you don't want the width to change dynamically while the user types. Something like Width="<%=(SourceString.Length * 10)%>"