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" 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>
1 <asp:DataGrid ID="DataGrid1" runat ="server" 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：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 }
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 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 }
