如何查找数据列表是否为空 [英] how to find whether the datalist is empty or not

问题描述

如何查找数据列表是否为空或其中是否包含某些数据.

实际上我正在使用这样的代码

DataList1.DataSource =我在此添加了一些数据源
DataList1.DataBind();


请帮助我.

how can i find that whether the datalist is empty or it has some data''s.

Actually i''m using the code like this

DataList1.DataSource =some data src i hav added in this
DataList1.DataBind();


Pls help me.

推荐答案

如下所示

DlEmp.DataSource = dtEmployeeDetails;
DlEmp.DataBind();

现在您可以检查

Now you can check

if(DlEmp!=null)
{
  if(DlEmp.Items.Count>0)
  {
    //Code to be executed
  }
  else
  {
    Response.Write("No Data");
  }
}
else
{
  Response.Write("No Data");
}

如有任何疑问，请告诉我

please let me know if you have any doubt

您好，

您是否可以找到有项目的数据列表?使用以下属性

Hi,

You can find datalist having items or not? using following property

DataList1.Items.Count

示例:

Example:

if (DataList1 == null || DataList1.Items.Count == 0)
    Response.Write("Your dataList is EMPTY");
else
    Response.Write("Your dataList contain " + DataList1.Items.Count.ToString() + " item(s)");

如果该答案对您有帮助，请提供评分. :)
谢谢，
Imdadhusen

If this answer is helpful to you, please provide rating. :)
Thanks,
Imdadhusen

谢谢Imdad ..

但是我仍然有疑问..
我在哪里添加此代码段..是否在DataList1.DataBind();
之前 或之后..

Thank you Imdad..

But i''m still having doubt..
where do i add this code snippet.. whether before DataList1.DataBind();
or after to that..

这篇关于如何查找数据列表是否为空的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！