不明白啥意思,GridView仅仅是一绑定控件.
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<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form runat="server">
<asp:DataGrid ID="DataGrid1" BorderColor="#0099FF" runat="server" ShowHeader="False"
Width="470px" CellPadding="0" CellSpacing="0" AutoGenerateColumns="False" BorderWidth="2px"
OnItemDataBound="DataGrid1_ItemDataBound">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<table cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td bgcolor="#FF6600">
<b>订单号:
<%# Eval("OrderID") %>
</b>
</td>
</tr>
<tr>
<td align="right">
<asp:DataGrid ID="DataGrid2" runat="server" AutoGenerateColumns="False" BorderColor="#33FF33"
DataKeyField="OrderID" DataSource='<%# ((System.Data.DataRowView)Container.DataItem).CreateChildView("OrderRelation") %>'>
<HeaderStyle Font-Bold="True" ForeColor="#CC0066" BackColor="#FFCCFF"></HeaderStyle>
<Columns>
<asp:BoundColumn Visible="False" DataField="OrderID" ReadOnly="True"></asp:BoundColumn>
<asp:TemplateColumn HeaderText="产品名称">
<HeaderStyle Width="300px"></HeaderStyle>
<ItemTemplate>
<%# Eval("ProductName") %>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="UnitPrice" HeaderText="单价"></asp:BoundColumn>
<asp:BoundColumn DataField="Quantity" HeaderText="数量"></asp:BoundColumn>
<asp:BoundColumn DataField="Discount" HeaderText="折扣"></asp:BoundColumn>
</Columns>
</asp:DataGrid></td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;public partial class _Test_Default : System.Web.UI.Page
{
protected void Page_Load( object sender, EventArgs e )
{
SqlConnection OrdersConnection = new SqlConnection(@"User ID=sa;Password=;Initial Catalog=NorthWind;Server=(local)");
SqlDataAdapter OrderAdapter = new SqlDataAdapter("Select * from Orders; select OrderID ,Products.ProductName,
[order Details].Unitprice,[order Details].Quantity,[order Details].discount from [order Details],Products
where [Order Details].ProductId=Products.ProductID", OrdersConnection);
DataSet OrderDataSet = new DataSet();
OrderAdapter.Fill(OrderDataSet);
OrderDataSet.Tables[0].TableName = "Orders";
OrderDataSet.Tables[1].TableName = "Order Details";
DataColumn Parent = OrderDataSet.Tables["Orders"].Columns["OrderID"];
DataColumn Child = OrderDataSet.Tables["Order Details"].Columns["OrderID"];
DataRelation OrderRelation = new DataRelation("OrderRelation", Parent, Child, false);
OrderDataSet.Relations.Add(OrderRelation);
DataGrid1.DataSource = OrderDataSet.Tables["Orders"].DefaultView;
DataBind();
}
protected void DataGrid1_ItemDataBound( object sender, DataGridItemEventArgs e )
{
e.Item.Cells[0].BackColor = System.Drawing.Color.Ivory;
}
}
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="HierarchicalDataGrid.aspx.vb" Inherits="HierarchicalDataGrid.HierarchicalDataGrid" %>
<%@ Import namespace="System.Data"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>显示主次关系数据的例子</title>
<meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body>
<form id="FrmDataGrid" method="post" runat="server">
<P align="center">
<asp:DataGrid id="DataGrid1" BorderColor="#0099FF" runat="server" ShowHeader="False" Width="470px" CellPadding="0" CellSpacing="0" AutoGenerateColumns="False" BorderWidth="2px">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<TABLE cellSpacing="0" cellPadding="0" width="100%" border="0">
<TR>
<TD bgColor="#FF6600"><B>订单号:
<%# DataBinder.Eval(Container.DataItem, "OrderID") %>
</B>
</TD>
</TR>
<TR>
<TD align="right">
<asp:DataGrid id=DataGrid2 runat="server" AutoGenerateColumns="False" BorderColor="#33FF33" DataKeyField="OrderID" DataSource='<%# Ctype(Container.DataItem,DataRowView).CreateChildView("OrderRelation") %>'>
<HeaderStyle Font-Bold="True" ForeColor="#CC0066" BackColor="#FFCCFF"></HeaderStyle>
<Columns>
<asp:BoundColumn Visible="False" DataField="OrderID" ReadOnly="True"></asp:BoundColumn>
<asp:TemplateColumn HeaderText="产品名称">
<HeaderStyle Width="300px"></HeaderStyle>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "ProductName") %>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="UnitPrice" HeaderText="单价"></asp:BoundColumn>
<asp:BoundColumn DataField="Quantity" HeaderText="数量"></asp:BoundColumn>
<asp:BoundColumn DataField="Discount" HeaderText="折扣"></asp:BoundColumn>
</Columns>
</asp:DataGrid></TD>
</TR>
</TABLE>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid></P>
</form>
</body>
</HTML>
<asp:DataGrid id=DataGrid2 runat="server" AutoGenerateColumns="False" BorderColor="#33FF33" DataKeyField="OrderID" DataSource='<%# Ctype(Container.DataItem,DataRowView).CreateChildView("OrderRelation") %>'>
OrderAdapter.Fill(OrderDataSet);
OrderDataSet.Tables[0].TableName = "Orders";
OrderDataSet.Tables[1].TableName = "Order Details";
DataColumn Parent = OrderDataSet.Tables["Orders"].Columns["OrderID"];
DataColumn Child = OrderDataSet.Tables["Order Details"].Columns["OrderID"];
DataRelation OrderRelation = new DataRelation("OrderRelation", Parent, Child, false);
OrderDataSet.Relations.Add(OrderRelation);
http://dotnet.aspx.cc/Exam/GridViewNested2.aspx
你可以给他一个判断吗?判断为true 就显示,为 false就隐藏;具体的Gridview的行单击事件里写这些判断代码。不知道对不(如有错误还请见谅。)
GridView.Rows[index].Visible=false; 这样做可以。
但是,当实现删除和更新操作时。重新绑定DataSource。更新最新数据。所有状态都初始化了。
要保存状态的孩子,有几层显示,几层隐藏。重新绑定后。状态不变。
哥已经实现咯。