如何通过sqldatasource计算获取的行数

// 前端页面中的sqldatasource控件
<asp:SqlDataSource ID="sqlDataSource1" runat="server" ConnectionString="YourConnectionString" SelectCommand="SELECT * FROM YourTable"></asp:SqlDataSource>

// 后端代码中获取行数
protected void Page_Load(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    DataView dv = (DataView)sqlDataSource1.Select(DataSourceSelectArguments.Empty);
    dt = dv.ToTable();
    
    int rowCount = dt.Rows.Count;
    
    // 将行数展示在前端页面上
    lblRowCount.Text = "行数：" + rowCount.ToString();
}