[代码] DataGrid & GridView 使用区别-阿里云开发者社区

[代码] DataGrid & GridView 使用区别

2017-10-17 1228

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简介：

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：

< 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" >
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< Columns >
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< asp:BoundField DataField ="cat_tag" HeaderText ="分类名称" />
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< asp:BoundField DataField ="rec_dd" HeaderText ="创建日期" />
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< asp:CommandField ShowEditButton ="True" />
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< asp:CommandField ShowDeleteButton ="True" />
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</ Columns >
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</ asp:GridView >

< 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" >
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< Columns >
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< asp:BoundColumn DataField ="cat_tag" HeaderText ="分类名称" ></ asp:BoundColumn >
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< asp:BoundColumn DataField ="rec_dd" HeaderText ="创建日期" ></ asp:BoundColumn >
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< asp:EditCommandColumn CancelText ="取消" EditText ="编辑" UpdateText ="更新" ></ asp:EditCommandColumn >
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< asp:ButtonColumn CommandName ="Delete" Text ="删除" ></ asp:ButtonColumn >
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</ Columns >
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</ asp:DataGrid >

代码实现：

// 数据绑定
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private void GridBind()
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{
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.
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GridView1.DataSource = dt;
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GridView1.DataBind();
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DataGrid1.DataSource = dt;
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DataGrid1.DataBind();
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}

1、GridView

// 编辑
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protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e)
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{
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GridView1.EditIndex = e.NewEditIndex;
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GridBind();
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}
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// 取消
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protected void GridView1_RowCancelingEdit( object sender, GridViewCancelEditEventArgs e)
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{
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GridView1 .EditIndex = -1;
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GridBind();
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}
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// 更新
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protected void GridView1_RowUpdating( object sender, GridViewUpdateEventArgs e)
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{
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string id = GridView1.DataKeys[e.RowIndex][0].ToString();
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string newtxt = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text;
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string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
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uc.ExecuteQuery(strSql);
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GridView1.EditIndex = -1;
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GridBind();
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}
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// 删除
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protected void GridView1_RowDeleting( object sender, GridViewDeleteEventArgs e)
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{
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string id = GridView1.DataKeys[e.RowIndex][0].ToString();
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string strSql = "DELETE FROM cat WHERE cat_id=" + id;
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uc.ExecuteQuery(strSql);
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GridView1.EditIndex = -1;
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GridBind();
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}

2、DataGrid

// 编辑
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protected void DataGrid1_EditCommand( object source, DataGridCommandEventArgs e)
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{
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DataGrid1.EditItemIndex = e.Item.ItemIndex;
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GridBind();
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}
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// 取消
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protected void DataGrid1_CancelCommand( object source, DataGridCommandEventArgs e)
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{
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DataGrid1.EditItemIndex = -1;
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GridBind();
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}
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// 更新
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protected void DataGrid1_UpdateCommand( object source, DataGridCommandEventArgs e)
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{
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string id = DataGrid1.DataKeys[e.Item.ItemIndex].ToString();
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string newtxt = ((TextBox)e.Item.Cells[0].Controls[0]).Text;
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string strSql = "UPDATE cat SET cat_tag='" + newtxt + "' WHERE cat_id=" + id;
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uc.ExecuteQuery(strSql);
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DataGrid1.EditItemIndex = -1;
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GridBind();
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}
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// 删除
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protected void DataGrid1_DeleteCommand( object source, DataGridCommandEventArgs e)
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{
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string id = DataGrid1 .DataKeys[e.Item .ItemIndex].ToString();
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string strSql = "DELETE FROM cat WHERE cat_id=" + id;
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uc.ExecuteQuery(strSql);
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DataGrid1.EditItemIndex = -1;
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GridBind();
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}

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

[代码] DataGrid & GridView 使用区别

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