我錯了他們的方式我編碼了我的aspx。
所以在這裏是做正確的方式,爲未來的初學者像我現在...
(與https://msdn.microsoft.com/en-us/library/ms178294(v=vs.140).aspx幫助)
<asp:Label ID="Label1" runat="server" Text="Student_ID"></asp:Label>
<asp:TextBox ID="txbStudent_ID" runat="server"></asp:TextBox>
<br />
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="student_ID" DataSourceID="SqlDataSource1" Height="50px" Width="125px">
<Fields>
<asp:BoundField DataField="student_ID" HeaderText="student_ID" InsertVisible="False" ReadOnly="True" SortExpression="student_ID" />
<asp:BoundField DataField="student_name" HeaderText="student_name" SortExpression="student_name" />
<asp:TemplateField HeaderText="student_course_ID" SortExpression="student_course_ID">
<EditItemTemplate>
<asp:DropDownList
ID="DropDownList1"
runat="server"
DataSourceID="SqlDataSource2"
DataTextField="course_name"
DataValueField="course_ID"
SelectedValue='<%# Bind("student_course_ID") %>'>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList
ID="DropDownList2"
runat="server"
DataSourceID="SqlDataSource2"
DataTextField="course_name"
DataValueField="course_ID"
SelectedValue='<%# Bind("student_course_ID") %>'>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label
ID="Label1"
runat="server"
Text='<%# Bind("student_course_ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" ShowInsertButton="True" ShowDeleteButton="True" />
</Fields>
</asp:DetailsView>
<asp:SqlDataSource
ID="SqlDataSource1"
runat="server"
ConnectionString="<%$ ConnectionStrings:Course_Student_Connection %>"
InsertCommand="INSERT INTO [Students] ([student_name], [student_course_ID]) VALUES (@student_name, @student_course_ID)"
SelectCommand="SELECT * FROM [Students] WHERE ([student_ID] = @student_ID)"
UpdateCommand="UPDATE [Students] SET [student_name] = @student_name, [student_course_ID] = @student_course_ID WHERE [student_ID] = @student_ID"
DeleteCommand="DELETE FROM [Students] WHERE [student_ID] = @student_ID">
<DeleteParameters>
<asp:Parameter Name="student_ID" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="student_name" Type="String" />
<asp:Parameter Name="student_course_ID" Type="Int32" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="txbStudent_ID" Name="student_ID" PropertyName="Text" Type="Int32" />
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="student_name" Type="String" />
<asp:Parameter Name="student_course_ID" Type="Int32" />
<asp:Parameter Name="student_ID" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<asp:SqlDataSource
ID="SqlDataSource2"
runat="server"
ConnectionString="<%$ ConnectionStrings:Course_Student_Connection %>"
SelectCommand="SELECT [course_ID], [course_name] FROM [Courses]">
</asp:SqlDataSource>
我希望它會節省一些時間給別人。
Stackoverflow是最棒的,迄今爲止最好的Q &網站上的網站!
Gadi。