关于GV和datatable动态绑定

 

前台aspx页面

<asp:GridView ID="GridView1" runat="server" Width="100%" SkinID="nviewSkinTotalStatistics"
>
<Columns>

</Columns>
</asp:GridView>

后端.cs代码

1.GV动态绑定

/// <summary>
/// 动态绑定GridView列
/// </summary>
void AddGridViewColumn()
{
GridView1.Columns.Clear();
//第一列
BoundField bfColumn0 = new BoundField();
bfColumn0.DataField = "Month";
bfColumn0.HeaderText = "月份";
GridView1.Columns.Add(bfColumn0);

//核医学试剂名称动态获取
DataTable NuclearMedicineName = new DataTable();
NuclearMedicineName = new RisTotalManage().GetNuclearMedicineName();
IEnumerable<string> L_NuclearMedicineName = new List<string>();
L_NuclearMedicineName = NuclearMedicineName.AsEnumerable().Select(t => t.Field<string>(Pub_dictionary.F_Dicvalue));

foreach (var it in L_NuclearMedicineName)
{
BoundField bf = new BoundField();
//表示绑定到该列的表的字段名
bf.DataField = it;
//表示该列的名称
bf.HeaderText = it;
GridView1.Columns.Add(bf);
}

//核素治疗量列
BoundField bfColumnEnd = new BoundField();
bfColumnEnd.DataField = "Counts";
bfColumnEnd.HeaderText = "核素治疗量";
GridView1.Columns.Add(bfColumnEnd);
GridView1.Width = 12 * 60;
GridView1.RowStyle.HorizontalAlign = HorizontalAlign.Center;
}

2.GV动态绑定之后动态生成一个和GV一样格式的datatable

void AddStatisticsColumn(ref DataTable dtStatistics)
{
DataColumn dcClientDepart = new DataColumn("Month", typeof(string));
dcClientDepart.Caption = "月份";
dtStatistics.Columns.Add(dcClientDepart);

//核医学试剂名称动态获取
DataTable NuclearMedicineName = new DataTable();
NuclearMedicineName = new RisTotalManage().GetNuclearMedicineName();
IEnumerable<string> L_NuclearMedicineName = new List<string>();
L_NuclearMedicineName = NuclearMedicineName.AsEnumerable().Select(t => t.Field<string>(Pub_dictionary.F_Dicvalue));

foreach (var it in L_NuclearMedicineName)
{

DataColumn dcName = new DataColumn(it, typeof(string));
dcName.Caption = it;
dtStatistics.Columns.Add(dcName);
}

DataColumn dcCounts = new DataColumn("Counts", typeof(string));
dcCounts.Caption = "核素治疗量";
dtStatistics.Columns.Add(dcCounts);

}

3.填充datatable数据 最后赋值给GV完成操作

DataTable dtStatistics = new DataTable();
//构造一个和GV一样格式的datatable
AddStatisticsColumn(ref dtStatistics); 第二步
if (dtMaskulin == null) return null;
if (dtMaskulin.Rows.Count == 0) return dtMaskulin;

//所有试剂名称
DataTable NuclearMedicineName = new DataTable();
NuclearMedicineName = new RisTotalManage().GetNuclearMedicineName();
IEnumerable<string> L_NuclearMedicineName = new List<string>();
L_NuclearMedicineName = NuclearMedicineName.AsEnumerable().Select(t => t.Field<string>(Pub_dictionary.F_Dicvalue));

//开始填充数据
for (int i = 1; i <= 13; i++)
{
DataRow drNew1 = dtStatistics.NewRow();

if (i == 13)
{
drNew1["Month"] = "总计";
for (int j = 0; j < dtMaskulin.Rows.Count; j++)
{
drNew1[dtMaskulin.Rows[j]["contrastagentname"].ToString()] = drNew1[dtMaskulin.Rows[j]["contrastagentname"].ToString()] = dtMaskulin.Compute("sum(dosages)", string.Format(" contrastagentname='{0}'", dtMaskulin.Rows[j]["contrastagentname"]));
}
drNew1["Counts"] = dtMaskulin.Compute("sum(dosages)","");
}
else
{
drNew1["Month"] = i + "月";
drNew1["Counts"] = dtMaskulin.Compute("sum(dosages)", string.Format("DATETIMES ='{0}'", sYear + "-" + i.ToString().getStr(2)));
for (int j = 0; j < dtMaskulin.Rows.Count; j++)
{
drNew1[dtMaskulin.Rows[j]["contrastagentname"].ToString()] = dtMaskulin.Compute("sum(dosages)", string.Format(" contrastagentname='{0}' AND DATETIMES ='{1}'", dtMaskulin.Rows[j]["contrastagentname"],sYear + "-" + i.ToString().getStr(2)));
}
}

dtStatistics.Rows.Add(drNew1);
}

return dtStatistics;