下面是我的代码。我遇到的问题是我的绑定(bind)文本字段没有按预期将信息发送回 UpdateCommand。如果我将任何 @variables 替换为硬编码文本,则更新会按预期进行。因此,如果我将 @RegID 替换为“25”,那么我的记录已成功更新但空白,因为所有其他 @variables 在更新处理时均为 NULL。我的错误在哪里?
<asp:FormView ID="formView" DataSourceID="Reg" runat="server" DataKeyNames="RegID" AllowPaging="true">
<ItemTemplate>
<h3 style="font-size:14px;"><%#Eval("Org") %></h3>
<table border="0">
<tr class="RowHighlight">
<td>Name:</td><td><%#Eval("Name") %></td>
</tr>
<tr>
<td>Phone Number:</td><td><%#Eval("PhoneNumber") %></td>
</tr>
<tr class="RowHighlight">
<td>Email Address:</td><td><%#Eval("EmailAddress")%></td>
</tr>
<tr>
<td>Address:</td><td><%#Eval("Address") %></td>
</tr>
<tr class="RowHighlight">
<td>Purchase Date:</td><td><%#Eval("MonthOfPurchase") + " " + Eval("YearOfPurchase")%></td>
</tr>
<tr>
<td>Notes:</td><td><%#Eval("Notes") %></td>
</tr>
<tr>
<td><asp:LinkButton ID="btnEdit" Text="Edit Details" runat="server" CommandName="Edit" /></td>
</tr>
</table>
</ItemTemplate>
<EditItemTemplate>
<h3 style="font-size:14px;"><%#Eval("Org") %></h3>
<table border="0">
<tr>
<td>ID</td><td><%#Eval("RegID")%></td>
</tr>
<tr class="RowHighlight">
<td>Name:</td><td><asp:TextBox ID="txtName" runat="server" Width="100%" Text='<%# Bind("Name") %>' /></td>
</tr>
<tr>
<td>Phone Number:</td><td><asp:TextBox ID="txtPhoneNumber" runat="server" Width="100%" Text='<%# Bind("PhoneNumber") %>' /></td>
</tr>
<tr class="RowHighlight">
<td>Email Address:</td><td><asp:TextBox ID="txtEmailAddress" runat="server" Width="100%" Text='<%# Bind("EmailAddress") %>' /></td>
</tr>
<tr>
<td>Address:</td><td><asp:TextBox ID="txtAddress" runat="server" Width="100%" Text='<%# Bind("Address") %>' /></td>
</tr>
<tr class="RowHighlight">
<td>Month Of Purchase:</td><td><asp:TextBox ID="txtMonthOfPurchase" runat="server" Width="100%" Text='<%# Bind("MonthOfPurchase") %>' /></td>
</tr>
<tr>
<td>Year Of Purchase:</td><td><asp:TextBox ID="txtYearOfPurchase" runat="server" Width="100%" Text='<%# Bind("YearOfPurchase") %>' /></td>
</tr>
<tr class="RowHighlight">
<td>Notes:</td><td><%#Eval("Notes") %></td>
</tr>
<tr>
<td><asp:LinkButton ID="btnSave" Text="Save Changes" runat="server" CausesValidation="true" CommandName="Update" /></td>
<td><asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" /></td>
</tr>
</table>
</EditItemTemplate>
</asp:FormView>
<asp:SqlDataSource ProviderName="System.Data.Odbc" ID="Reg" runat="server"
ConnectionString="DRIVER={MySQL ODBC 3.51 Driver}; SERVER=<SERVER_NAME>; PORT=3306; DATABASE=<DATABASE> UID=<USERID>; PWD=<PASSWORD>; OPTION=3;"
SelectCommand="SELECT * FROM tblRegsitration
WHERE EmailSent=0 ORDER BY Org"
UpdateCommand="UPDATE tblRegsitration SET Name=@Name,
PhoneNumber=@PhoneNumber,
EmailAddress=@EmailAddress,
Address=@Address,
MonthOfPurchase=@MonthOfPurchase,
YearOfPurchase=@YearOfPurchase
WHERE (RegID=@RegID)" />
最佳答案
您没有任何 parameters定义。
示例:
<asp:sqlDataSource ID="EmployeeDetailsSqlDataSource"
SelectCommand="SELECT EmployeeID, LastName, FirstName FROM Employees WHERE EmployeeID = @EmpID"
InsertCommand="INSERT INTO Employees(LastName, FirstName) VALUES (@LastName, @FirstName);
SELECT @EmpID = SCOPE_IDENTITY()"
UpdateCommand="UPDATE Employees SET LastName=@LastName, FirstName=@FirstName
WHERE EmployeeID=@EmployeeID"
DeleteCommand="DELETE Employees WHERE EmployeeID=@EmployeeID"
ConnectionString="<%$ ConnectionStrings:NorthwindConnection %>"
OnInserted="EmployeeDetailsSqlDataSource_OnInserted"
RunAt="server">
<SelectParameters>
<asp:Parameter Name="EmpID" Type="Int32" DefaultValue="0" />
</SelectParameters>
<InsertParameters>
<asp:Parameter Name="EmpID" Direction="Output" Type="Int32" DefaultValue="0" />
</InsertParameters>
</asp:sqlDataSource>
关于ASP.NET FormView 更新失败,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3229766/