ASP .NET - RequiredFieldValidator在文本框之后创建空间

Question

I have a DetailsView with a number of textboxes setup with RequiredFieldValidators.

The code for both is:

<InsertItemTemplate>
   <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("date_time") %>'></asp:TextBox>
   <asp:RequiredFieldValidator 
         ID="RequiredFieldValidator11" 
         runat="server" 
         ControlToValidate="TextBox1"
         ErrorMessage="Please update date_time." 
         ValidationGroup="InsertDetailsView1">*</asp:RequiredFieldValidator>
  </InsertItemTemplate>

The problem is that the validation control is now creating a space (ie
) between the textbox and the one below it. How do I get rid of the space? Is it a CSS thing?

Answer 1

设置此属性： Display="Dynamic" 。

Answer 2

您可以设置Display =“Dynamic”，只有在发生错误时才会显示消息。

Answer 3

You could set Display="Dynamic", but you will still end up wrapping once the validation error is triggered if you don't leave a space big enough for the error message next to the control.

I usually put a red asterisk in for the error text, and then I put the actual error text in the ErrorMessage and ToolTip attributes, then display the long error message using a validation summary control.