我正在尝试更新我的访问数据库中的值,但是在某些情况下它不起作用。
编码 :
<form id="form1" runat="server">
<asp:AccessDataSource ID="AccessDataSource1" runat="server"
DataFile="~/App_Data/Database1.mdb"
DeleteCommand="UPDATE DT_Person SET Deleted = NOW() WHERE (Person_Ref = ?)"
InsertCommand="INSERT INTO [DT_Person] ([Person_Ref], [Created], [Updated], [Deleted], [Person_Name], [Person_No]) VALUES (?, ?, ?, ?, ?, ?)"
OldValuesParameterFormatString="original_{0}"
SelectCommand="SELECT * FROM [DT_Person]"
UpdateCommand="UPDATE DT_Person SET Updated = NOW(), Person_Name = ?, Person_No = ? WHERE (Person_Ref = ?)">
<DeleteParameters>
<asp:Parameter Name="original_Person_Ref" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="Created" Type="DateTime" />
<asp:Parameter Name="Updated" Type="DateTime" />
<asp:Parameter Name="Deleted" Type="DateTime" />
<asp:Parameter Name="Person_Name" Type="String" />
<asp:Parameter Name="Person_No" Type="String" />
<asp:Parameter Name="original_Person_Ref" Type="Int32" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="Person_Ref" Type="Int32" />
<asp:Parameter Name="Created" Type="DateTime" />
<asp:Parameter Name="Updated" Type="DateTime" />
<asp:Parameter Name="Deleted" Type="DateTime" />
<asp:Parameter Name="Person_Name" Type="String" />
<asp:Parameter Name="Person_No" Type="String" />
</InsertParameters>
</asp:AccessDataSource>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3"
DataKeyNames="Person_Ref" DataSourceID="AccessDataSource1">
<RowStyle ForeColor="#000066" />
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True"
ShowSelectButton="True" />
<asp:BoundField DataField="Person_Ref" HeaderText="Person_Ref"
InsertVisible="False" ReadOnly="True" SortExpression="Person_Ref" />
<asp:BoundField DataField="Created" HeaderText="Created"
SortExpression="Created" />
<asp:BoundField DataField="Updated" HeaderText="Updated"
SortExpression="Updated" />
<asp:BoundField DataField="Deleted" HeaderText="Deleted"
SortExpression="Deleted" />
<asp:BoundField DataField="Person_Name" HeaderText="Person_Name"
SortExpression="Person_Name" />
<asp:BoundField DataField="Person_No" HeaderText="Person_No"
SortExpression="Person_No" />
</Columns>
如您所见,删除命令
(DeleteCommand="UPDATE DT_Person SET Deleted = NOW() WHERE (Person_Ref = ?)" )
真的是一个更新声明,这很好用。但是,实际的更新语句在网页上不起作用。奇怪的是,如果您在“查询构建器”中测试查询,它可以正常工作。
这里真的需要一些帮助。
TIA
PS 我每次都使用 Visual Studio 2008 并使用数据源生成器