如何：将 DataSet 的每个表绑定到 GridView 上的页面

Question

我已经搜索和搜索，我认为这应该是相当简单的，但我无法弄清楚。我有一个数据集 (myDataSet)，向其中添加了几个表 (myDataTable)。我也有一个 GridView。我想设置 GridView，以便 GridView 上的每个页面都绑定到 DataSet 的每个表（即 GridView 的第 1 页 = DataSet.Table[0] 等）。这些表都有相同的列，但行数不同。

如果 PageSize = 表中的行数，即使我已将 PageButtonCount 明确设置为 3（此数据集中有 3 个表），按钮也会完全消失。我想有某种自动分页功能可以确定不需要更多页面，但我无法弄清楚如何让它工作。

public partial class _Default : System.Web.UI.Page
{
    Users theUsers = new Users();
    static DataSet myDataSet = new DataSet();
    DataTable myDataTable = new DataTable();
    protected void Page_Load(object sender, EventArgs e)
    {
    protected bool runReport()
    {
        ltError.Visible = false;
        try
        {
            using (MySqlConnection dbConn = new MySqlConnection(ConfigurationManager.ConnectionStrings["AsteriskConn"].ConnectionString))
            {
                //sql query
                string sql = "SELECT calldate, src, dst, duration FROM cdr WHERE (src LIKE @ext AND dst > 9999)" +
                               "OR (dst LIKE @ext AND src > 9999) AND dst NOT LIKE '*%'";

                MySqlDataAdapter adapter = new MySqlDataAdapter();
                dbConn.Open();
                myDataSet.Tables.Clear();
                int j = ddlUsers.SelectedIndex;
                //loop through each user in the list and query the database for its cdr records with the sql query string
                foreach (int i in theUsers.groups[j].extensions)
                {
                    myDataTable = new DataTable();
                    adapter.SelectCommand = new MySqlCommand(sql, dbConn);
                    adapter.SelectCommand.Parameters.Add("@ext", MySqlDbType.VarChar, 80).Value = i;
                    adapter.Fill(myDataTable);
                    myDataTable.TableName = i.ToString();
                    myDataSet.Tables.Add(myDataTable);
                }
                gvReport.DataSource = myDataSet;
                gvReport.AllowPaging = true;
                gvReport.PageSize = myDataSet.Tables[0].Rows.Count;
                gvReport.PagerSettings.PageButtonCount = myDataSet.Tables.Count;
                gvReport.PagerSettings.Mode = PagerButtons.NumericFirstLast;
                gvReport.PagerSettings.Position = PagerPosition.Top;
                gvReport.PagerSettings.Visible = true;
                gvReport.DataBind();
                dbConn.Close();    
            }
        }
    }
}
protected void gvReport_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    gvReport.PageIndex = e.NewPageIndex;
    gvReport.DataSource = myDataSet.Tables[e.NewPageIndex];
    gvReport.DataBind();
}
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <asp:Panel ID="Panel1" runat="server" HorizontalAlign="Center">        
    <asp:GridView ID="gvReport" runat="server" OnPageIndexChanging="gvReport_PageIndexChanging"
            onrowdatabound="gvReport_RowDataBound" Visible="False" HorizontalAlign="Center" AllowPaging="true">
            <PagerSettings Position="Top" />
        </asp:GridView>
        <asp:Literal ID="ltError" runat="server" Visible="False"></asp:Literal>
    </asp:Panel>
</asp:Content>

Answer 1

我认为，您最好动态添加页面索引按钮/链接按钮（或使用中继器显示页面索引按钮）