ASP.NET 2.0提供了功能强大的数据绑定控件GridView、在使用中,一些属性和方法经常会与ASP.NET 1.1中的DataGrid混淆(VS2005中依然可以使用DataGrid,手动添加到工具箱或HTML状态输入代码),下面我们分别用GridView和DataGrid实现其数据绑定、编辑、更新、删除等,从其代码中看两者的不同。
页面:
1
<
asp:GridView
ID
="GridView1"
runat
="server"
AutoGenerateColumns
="False"
Width
="100%"
OnRowEditing
="GridView1_RowEditing"
OnRowCancelingEdit
="GridView1_RowCancelingEdit"
OnRowUpdating
="GridView1_RowUpdating"
DataKeyNames
="cat_id"
OnRowDeleting
="GridView1_RowDeleting"
>
2 < Columns >
3 < asp:BoundField DataField ="cat_tag" HeaderText ="分类名称" />
4 < asp:BoundField DataField ="rec_dd" HeaderText ="创建日期" />
5 < asp:CommandField ShowEditButton ="True" />
6 < asp:CommandField ShowDeleteButton ="True" />
7 </ Columns >
8 </ asp:GridView >
2 < Columns >
3 < asp:BoundField DataField ="cat_tag" HeaderText ="分类名称" />
4 < asp:BoundField DataField ="rec_dd" HeaderText ="创建日期" />
5 < asp:CommandField ShowEditButton ="True" />
6 < asp:CommandField ShowDeleteButton ="True" />
7 </ Columns >
8 </ asp:GridView >
1
<
asp:DataGrid
ID
="DataGrid1"
runat
="server"
AutoGenerateColumns
="False"
Width
="100%"
OnCancelCommand
="DataGrid1_CancelCommand"
OnEditCommand
="DataGrid1_EditCommand"
OnUpdateCommand
="DataGrid1_UpdateCommand"
DataKeyField
="cat_id"
OnDeleteCommand
="DataGrid1_DeleteCommand"
>
2 < Columns >
3 < asp:BoundColumn DataField ="cat_tag" HeaderText ="分类名称" ></ asp:BoundColumn >
4 < asp:BoundColumn DataField ="rec_dd" HeaderText ="创建日期" ></ asp:BoundColumn >
5 < asp:EditCommandColumn CancelText ="取消" EditText ="编辑" UpdateText ="更新" ></ asp:EditCommandColumn >
6 < asp:ButtonColumn CommandName ="Delete" Text ="删除" ></ asp:ButtonColumn >
7 </ Columns >
8 </ asp:DataGrid >
代码实现:
2 < Columns >
3 < asp:BoundColumn DataField ="cat_tag" HeaderText ="分类名称" ></ asp:BoundColumn >
4 < asp:BoundColumn DataField ="rec_dd" HeaderText ="创建日期" ></ asp:BoundColumn >
5 < asp:EditCommandColumn CancelText ="取消" EditText ="编辑" UpdateText ="更新" ></ asp:EditCommandColumn >
6 < asp:ButtonColumn CommandName ="Delete" Text ="删除" ></ asp:ButtonColumn >
7 </ Columns >
8 </ asp:DataGrid >
1
//
数据绑定
2 private void GridBind()
3 {
4 .
5 GridView1.DataSource = dt;
6 GridView1.DataBind();
7 DataGrid1.DataSource = dt;
8 DataGrid1.DataBind();
9 }
2 private void GridBind()
3 {
4 .
5 GridView1.DataSource = dt;
6 GridView1.DataBind();
7 DataGrid1.DataSource = dt;
8 DataGrid1.DataBind();
9 }
1、GridView
1
//
编辑
2 protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e)
3 {
4 GridView1.EditIndex = e.NewEditIndex;
5 GridBind();
6 }
7 // 取消
8 protected void GridView1_RowCancelingEdit( object sender, GridViewCancelEditEventArgs e)
9 {
10 GridView1 .EditIndex = -1;
11 GridBind();
12 }
13 // 更新
14 protected void GridView1_RowUpdating( object sender, GridViewUpdateEventArgs e)
15 {
16 string id = GridView1.DataKeys[e.RowIndex][0].ToString();
17 string newtxt = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text;
18 string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
19 uc.ExecuteQuery(strSql);
20 GridView1.EditIndex = -1;
21 GridBind();
22 }
23 // 删除
24 protected void GridView1_RowDeleting( object sender, GridViewDeleteEventArgs e)
25 {
26 string id = GridView1.DataKeys[e.RowIndex][0].ToString();
27 string strSql = "DELETE FROM cat WHERE cat_id=" + id;
28 uc.ExecuteQuery(strSql);
29 GridView1.EditIndex = -1;
30 GridBind();
31 }
2、DataGrid
2 protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e)
3 {
4 GridView1.EditIndex = e.NewEditIndex;
5 GridBind();
6 }
7 // 取消
8 protected void GridView1_RowCancelingEdit( object sender, GridViewCancelEditEventArgs e)
9 {
10 GridView1 .EditIndex = -1;
11 GridBind();
12 }
13 // 更新
14 protected void GridView1_RowUpdating( object sender, GridViewUpdateEventArgs e)
15 {
16 string id = GridView1.DataKeys[e.RowIndex][0].ToString();
17 string newtxt = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text;
18 string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
19 uc.ExecuteQuery(strSql);
20 GridView1.EditIndex = -1;
21 GridBind();
22 }
23 // 删除
24 protected void GridView1_RowDeleting( object sender, GridViewDeleteEventArgs e)
25 {
26 string id = GridView1.DataKeys[e.RowIndex][0].ToString();
27 string strSql = "DELETE FROM cat WHERE cat_id=" + id;
28 uc.ExecuteQuery(strSql);
29 GridView1.EditIndex = -1;
30 GridBind();
31 }
1
//
编辑
2 protected void DataGrid1_EditCommand( object source, DataGridCommandEventArgs e)
3 {
4 DataGrid1.EditItemIndex = e.Item.ItemIndex;
5 GridBind();
6 }
7 // 取消
8 protected void DataGrid1_CancelCommand( object source, DataGridCommandEventArgs e)
9 {
10 DataGrid1.EditItemIndex = -1;
11 GridBind();
12 }
13 // 更新
14 protected void DataGrid1_UpdateCommand( object source, DataGridCommandEventArgs e)
15 {
16 string id = DataGrid1.DataKeys[e.Item.ItemIndex].ToString();
17 string newtxt = ((TextBox)e.Item.Cells[0].Controls[0]).Text;
18 string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
19 uc.ExecuteQuery(strSql);
20 DataGrid1.EditItemIndex = -1;
21 GridBind();
22 }
23 // 删除
24 protected void DataGrid1_DeleteCommand( object source, DataGridCommandEventArgs e)
25 {
26 string id = DataGrid1 .DataKeys[e.Item .ItemIndex].ToString();
27 string strSql = "DELETE FROM cat WHERE cat_id=" + id;
28 uc.ExecuteQuery(strSql);
29 DataGrid1.EditItemIndex = -1;
30 GridBind();
31 }
2 protected void DataGrid1_EditCommand( object source, DataGridCommandEventArgs e)
3 {
4 DataGrid1.EditItemIndex = e.Item.ItemIndex;
5 GridBind();
6 }
7 // 取消
8 protected void DataGrid1_CancelCommand( object source, DataGridCommandEventArgs e)
9 {
10 DataGrid1.EditItemIndex = -1;
11 GridBind();
12 }
13 // 更新
14 protected void DataGrid1_UpdateCommand( object source, DataGridCommandEventArgs e)
15 {
16 string id = DataGrid1.DataKeys[e.Item.ItemIndex].ToString();
17 string newtxt = ((TextBox)e.Item.Cells[0].Controls[0]).Text;
18 string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
19 uc.ExecuteQuery(strSql);
20 DataGrid1.EditItemIndex = -1;
21 GridBind();
22 }
23 // 删除
24 protected void DataGrid1_DeleteCommand( object source, DataGridCommandEventArgs e)
25 {
26 string id = DataGrid1 .DataKeys[e.Item .ItemIndex].ToString();
27 string strSql = "DELETE FROM cat WHERE cat_id=" + id;
28 uc.ExecuteQuery(strSql);
29 DataGrid1.EditItemIndex = -1;
30 GridBind();
31 }
本文转自chy710博客园博客,原文链接:http://www.cnblogs.com/chy710/archive/2007/01/29/633947.html
,如需转载请自行联系原作者