asp：ValidationSummary div elemenet和样式

Question

<div style="width:100%; background-color:Aqua; text-align:center; vertical-align:middle; height:30px;"> 
<asp:ValidationSummary ID="ValidationSummary1" runat="server" HeaderText="Error" /> 
</div> 

我不想显示div元素，如果没有错误。我不想使用js，只需使用asp控件！

Answer 1

使用height:auto; line-height:30px;代替height:30px;

<div style="width:100%; background-color:Aqua; text-align:center; vertical-align:middle; height:auto; line-height:30px;"> 
<asp:ValidationSummary ID="ValidationSummary1" runat="server" ForeColor="Black" HeaderText="Fill" /> 
</div> 

Answer 2

一种选择是创建新三夏和的ValidationSummary派生并重写Render方法，所以用div来包装你的真正的ValidationSummary就像你想要的。

protected override void Render(HtmlTextWriter output) { 
    writer.Write("<div class=\"validationsummary-wrap\">"); 

    //Write the derived validation summary 
    base.Render(writer); 

    writer.Write("</div>"); 
}