C# MVC Validation Summary on Multiple Forms

參考文章：http://stackoverflow.com/questions/5342427/specify-validation-summary-on-multiple-forms

在同一個頁面裡有多個form時，怎麼指定驗證的訊息要顯示在哪個form裡？

@using (Html.BeginForm("update1", "form1"))
{
  if (Request.Form.AllKeys.Contains("btn1"))
  {
    @Html.ValidationSummary()
  }
                
  @Html.LabelFor(m => m.PointA1)
  @Html.TextBoxFor(m => m.PointA1)

  @Html.LabelFor(m => m.PointB1)
  @Html.TextBoxFor(m => m.PointB1)
                    
  <br />
  <input type="submit" name="btn1" value="確定" /> 
}

@using (Html.BeginForm("update2", "form2"))
{
  if (Request.Form.AllKeys.Contains("btn2"))
  {
    @Html.ValidationSummary()
  }
                
  @Html.LabelFor(m => m.PointA2)
  @Html.TextBoxFor(m => m.PointA2)

  @Html.LabelFor(m => m.PointB2)
  @Html.TextBoxFor(m => m.PointB2)
                    
  <br />
  <input type="submit" name="btn2" value="確定" /> 
}

利用submit的name就好嘍！