让验证控件一开始就显示红星或点击按钮后弹出对话框再显示红星_组态软件怎么把控件的红字显示出来的-优快云博客

本文介绍了一种让验证控件在页面加载时立即显示提示的方法，并实现了点击保存按钮后通过对话框再次验证显示提示的功能。

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让验证控件一开始就显示红星:
private void Page_Load(object sender, System.EventArgs e)
{

valid_salesEngineer.Validate();

}

点击按钮后弹出对话框再显示红星：
private void Page_Load(object sender, System.EventArgs e)
{
    string info = culturemanager.cust_GetString("Err_IsSave"); //Add By ZhuYisheng 20060404
    this.btn_Save.Attributes.Add("OnClick", "return confirm('" + info + "');");
}

private void btn_Save_Click(object sender, System.EventArgs e)
{
   string ValidMessage = "";
   for( int i=0 ; i < this.Page.Validators.Count ; i++ )
   {
    System.Web.UI.WebControls.RequiredFieldValidator Re_fieldinfo = new RequiredFieldValidator();
    Re_fieldinfo = (System.Web.UI.WebControls.RequiredFieldValidator)this.Page.Validators[i];

    Re_fieldinfo.Validate();

    if( !Re_fieldinfo.IsValid )
    {
     try
     {
      if ( Re_fieldinfo.ID != "RequiredFieldValidator1" )
      {
       string alertName = "Err_" + Re_fieldinfo.ID;
       string alertMessage = culturemanager.cust_GetString(alertName);
       ValidMessage += "- " + alertMessage + "//n";
      }
     }
     catch(Exception ex)
     {
      string error = ex.Message;
      continue;
     }
    }
   }
   if( ValidMessage != "" )
   {
    Response.Write("<script>");
    Response.Write("alert('" + ValidMessage + "');");
    Response.Write("</script>");
   }
}