【发布时间】：2016-04-07 02:01:15
【问题描述】：
我正在尝试在 gridview 中链接选定的行并在表单视图中显示它，但是每次我在 gridview 中选择项目时，它都会在 gridview 中选择一个特定的行并显示它。
这是我的代码。
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WebApplication1.Grades1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="Code" DataSourceID="SqlDataSource1" Width="921px" CellPadding="4" ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="Code" HeaderText="Code" ReadOnly="True" SortExpression="Code" />
<asp:BoundField DataField="GradeName" HeaderText="GradeName" SortExpression="GradeName" />
<asp:BoundField DataField="GradeGroupName" HeaderText="GradeGroupName" SortExpression="GradeGroupName" />
<asp:BoundField DataField="GradeCons" HeaderText="GradeCons" SortExpression="GradeCons" />
<asp:BoundField DataField="GradeNameCons" HeaderText="GradeNameCons" SortExpression="GradeNameCons" />
</Columns>
<EditRowStyle BackColor="#2461BF" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#EFF3FB" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F5F7FB" />
<SortedAscendingHeaderStyle BackColor="#6D95E1" />
<SortedDescendingCellStyle BackColor="#E9EBEF" />
<SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Dev201601ConnectionString %>"
SelectCommand="SELECT Grades.Grade AS Code, Grades.GradeName, GradeGroups.GradeGroupName, Grades.GradeCons, Grades.GradeNameCons FROM Grades LEFT OUTER JOIN GradeGroups ON GradeGroups.GradeGroup = Grades.GradeGroup ORDER BY Code"></asp:SqlDataSource>
<br />
<asp:FormView ID="FormView1" runat="server" DataKeyNames="Grade" DataSourceID="SqlDataSource2" CellPadding="4" ForeColor="#333333" Width="926px">
<EditItemTemplate>
Grade:
<asp:Label ID="GradeLabel1" runat="server" Text='<%# Eval("Grade") %>' />
<br />
GradeName:
<asp:TextBox ID="GradeNameTextBox" runat="server" Text='<%# Bind("GradeName") %>' />
<br />
GradeGroupName:
<asp:TextBox ID="GradeGroupNameTextBox" runat="server" Text='<%# Bind("GradeGroupName") %>' />
<br />
GradeStepAmount:
<asp:TextBox ID="GradeStepAmountTextBox" runat="server" Text='<%# Bind("GradeStepAmount") %>' />
<br />
GradeOrder:
<asp:TextBox ID="GradeOrderTextBox" runat="server" Text='<%# Bind("GradeOrder") %>' />
<br />
GradeCons:
<asp:TextBox ID="GradeConsTextBox" runat="server" Text='<%# Bind("GradeCons") %>' />
<br />
GradeNameCons:
<asp:TextBox ID="GradeNameConsTextBox" runat="server" Text='<%# Bind("GradeNameCons") %>' />
<br />
GradeFromDate:
<asp:TextBox ID="GradeFromDateTextBox" runat="server" Text='<%# Bind("GradeFromDate") %>' />
<br />
GradeToDate:
<asp:TextBox ID="GradeToDateTextBox" runat="server" Text='<%# Bind("GradeToDate") %>' />
<br />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update" Text="Update" />
<asp:LinkButton ID="UpdateCancelButton" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</EditItemTemplate>
<EditRowStyle BackColor="#2461BF" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<InsertItemTemplate>
Grade:
<asp:TextBox ID="GradeTextBox" runat="server" Text='<%# Bind("Grade") %>' />
<br />
GradeName:
<asp:TextBox ID="GradeNameTextBox" runat="server" Text='<%# Bind("GradeName") %>' />
<br />
GradeGroupName:
<asp:TextBox ID="GradeGroupNameTextBox" runat="server" Text='<%# Bind("GradeGroupName") %>' />
<br />
GradeStepAmount:
<asp:TextBox ID="GradeStepAmountTextBox" runat="server" Text='<%# Bind("GradeStepAmount") %>' />
<br />
GradeOrder:
<asp:TextBox ID="GradeOrderTextBox" runat="server" Text='<%# Bind("GradeOrder") %>' />
<br />
GradeCons:
<asp:TextBox ID="GradeConsTextBox" runat="server" Text='<%# Bind("GradeCons") %>' />
<br />
GradeNameCons:
<asp:TextBox ID="GradeNameConsTextBox" runat="server" Text='<%# Bind("GradeNameCons") %>' />
<br />
GradeFromDate:
<asp:TextBox ID="GradeFromDateTextBox" runat="server" Text='<%# Bind("GradeFromDate") %>' />
<br />
GradeToDate:
<asp:TextBox ID="GradeToDateTextBox" runat="server" Text='<%# Bind("GradeToDate") %>' />
<br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert" Text="Insert" />
<asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
Grade:
<asp:Label ID="GradeLabel" runat="server" Text='<%# Eval("Grade") %>' />
<br />
GradeName:
<asp:Label ID="GradeNameLabel" runat="server" Text='<%# Bind("GradeName") %>' />
<br />
GradeGroupName:
<asp:Label ID="GradeGroupNameLabel" runat="server" Text='<%# Bind("GradeGroupName") %>' />
<br />
GradeStepAmount:
<asp:Label ID="GradeStepAmountLabel" runat="server" Text='<%# Bind("GradeStepAmount") %>' />
<br />
GradeOrder:
<asp:Label ID="GradeOrderLabel" runat="server" Text='<%# Bind("GradeOrder") %>' />
<br />
GradeCons:
<asp:Label ID="GradeConsLabel" runat="server" Text='<%# Bind("GradeCons") %>' />
<br />
GradeNameCons:
<asp:Label ID="GradeNameConsLabel" runat="server" Text='<%# Bind("GradeNameCons") %>' />
<br />
GradeFromDate:
<asp:Label ID="GradeFromDateLabel" runat="server" Text='<%# Bind("GradeFromDate") %>' />
<br />
GradeToDate:
<asp:Label ID="GradeToDateLabel" runat="server" Text='<%# Bind("GradeToDate") %>' />
<br />
<asp:LinkButton ID="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="False" CommandName="Insert" Text="Insert" />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="False" CommandName="Update" Text="Update" />
</ItemTemplate>
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#EFF3FB" />
</asp:FormView>
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:Dev201601ConnectionString %>"
SelectCommand="SELECT Grades.Grade, Grades.GradeName, GradeGroups.GradeGroupName, Grades.GradeStepAmount, Grades.GradeOrder, Grades.GradeCons, Grades.GradeNameCons, Grades.GradeFromDate, Grades.GradeToDate FROM Grades LEFT OUTER JOIN GradeGroups ON GradeGroups.GradeGroup = Grades.GradeGroup"
DeleteCommand="DELETE FROM Grades WHERE (Grade = @Grade)"
InsertCommand="INSERT INTO Grades(Grade, GradeName, GradeGroup, GradeStepAmount, GradeNameCons, GradeFromDate, GradeToDate, GradeOrder, GradeCons) VALUES (@Grade, @GradeName, @GradeGroup, @GradeStepAmount, @GradeNameCons, @GradeFromDate, @GradeToDate, @GradeOrder, @GradeCons)"
UpdateCommand="UPDATE Grades SET Grade = @GradeNValue, GradeName = @GradeNameNValue, GradeGroup = @GradeGroupNValue, GradeStepAmount = @GradeStepAmountNValue, GradeOrder = @GradeOrderNValue, GradeCons = @GradeConsNValue, GradeNameCons = @GradeNameConsNValue, GradeFromDate = @GradeFromDateNValue, GradeToDate = @GradeToDateNValue FROM Grades INNER JOIN GradeGroups ON Grades.GradeGroup = GradeGroups.GradeGroup WHERE (Grades.Grade = @Grade) AND (Grades.GradeName = @GradeName) AND (Grades.GradeGroup = @GradeGroup) AND (Grades.GradeStepAmount = @GradeStepAmount) AND (Grades.GradeOrder = @GradOrder) AND (Grades.GradeCons = @GraderCons) AND (Grades.GradeNameCons = @GradeNameCons) AND (Grades.GradeFromDate = @GradeFromDate) AND (Grades.GradeToDate = @GradeToDate)">
<DeleteParameters>
<asp:Parameter Name="Grade" />
</DeleteParameters>
<SelectParameters>
<asp:ControlParameter ControlID="GridView1" Name="Grade" PropertyName="SelectedValue" Type="double" />
</SelectParameters>
<InsertParameters>
<asp:Parameter Name="Grade" />
<asp:Parameter Name="GradeName" />
<asp:Parameter Name="GradeGroup" />
<asp:Parameter Name="GradeStepAmount" />
<asp:Parameter Name="GradeNameCons" />
<asp:Parameter Name="GradeFromDate" />
<asp:Parameter Name="GradeToDate" />
<asp:Parameter Name="GradeOrder" />
<asp:Parameter Name="GradeCons" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="GradeNValue" />
<asp:Parameter Name="GradeNameNValue" />
<asp:Parameter Name="GradeGroupNValue" />
<asp:Parameter Name="GradeStepAmountNValue" />
<asp:Parameter Name="GradeOrderNValue" />
<asp:Parameter Name="GradeConsNValue" />
<asp:Parameter Name="GradeNameConsNValue" />
<asp:Parameter Name="GradeFromDateNValue" />
<asp:Parameter Name="GradeToDateNValue" />
<asp:Parameter Name="Grade" />
<asp:Parameter Name="GradeName" />
<asp:Parameter Name="GradeGroup" />
<asp:Parameter Name="GradeStepAmount" />
<asp:Parameter Name="GradOrder" />
<asp:Parameter Name="GraderCons" />
<asp:Parameter Name="GradeNameCons" />
<asp:Parameter Name="GradeFromDate" />
<asp:Parameter Name="GradeToDate" />
</UpdateParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
附：我做了select参数，但还是不行。
【问题讨论】：