拥有一个控制多个 Gridview Asp.net C# 的 PageIndexChanging

Question

我只想知道是否有可能拥有一个PageIndexChanging 来控制多个Gridview，如附图所示。 Gridview 中的数据绑定来自同一张表，我决定将其分成 3 个 Gridview，以便更好地显示数据。我想要一个 PageIndexChanging 来控制 3 个 Gridview。

填充网格视图的 C# 代码

using (SqlConnection con = new SqlConnection(WebConfigurationManager.ConnectionStrings["Molecular"].ConnectionString))
 {
                con.Open();

                // Sample Result Mutation Results Details

       using (SqlCommand cmd1 = new SqlCommand(@"SELECT *
                                                            FROM
                                                                    MutationResults 
                                                            WHERE

                                                             SampleBranchID=@SampleBranchID ", con))
         {

            cmd1.Parameters.AddWithValue("@SampleBranchID", lblSampleBranchID.Text);
             DataTable dt1 = new DataTable();
             SqlDataAdapter da1 = new SqlDataAdapter(cmd1);
             da1.Fill(dt1);
              if (dt1 != null && dt1.Rows.Count > 0)
                {
                        GridViewMYD88.DataSource = dt1;
                        GridViewMYD88.DataBind();
                        GridViewNOTCH1.DataSource = dt1;
                        GridViewNOTCH1.DataBind();
                        GridViewSF3B1.DataSource = dt1;
                        GridViewSF3B1.DataBind();

                    }
                }
         con.Close();
    }

Answer 1

是的，您可以通过将sender 转换回 GridView 来为所有 GridView 创建一个方法。

protected void GridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    //cast the sender back to a gridview
    GridView gv = sender as GridView;

    //set the new page index to the gridviw
    gv.PageIndex = e.NewPageIndex;

    //make sure you rebind the correct data per gridview
    gv.DataSource = LoadDataTableFromDB();

    //rebind the data
    gv.DataBind();
}

public static DataTable LoadDataTableFromDB()
{
    string query = "select * from dtabase";

    DataTable dt = new DataTable();

    using (SqlConnection connection = new SqlConnection(connectionString))
    using (SqlDataAdapter adapter = new SqlDataAdapter(query, connection))
    {
        try
        {
            adapter.Fill(dt);
        }
        catch
        {
        }
    }

    return dt;
}

您只需确保为每个 GridView 重新绑定正确的 DataSource。如果您对所有三个只有一个，那么只需重新绑定数据。