用这个失去理智。即使命令设置已设置,我的按钮也会获得空字符串的命令参数。我已经验证它在调试模式下被设置为正确的ID,但是当我稍后在转发器ItemCommand事件中访问此命令参数时,commandarguments是空字符串。我不明白为什么。我最终得到一个sq外键异常,因为它从空字符串值插入ID为0。关于将重置它的转发器按钮没有其他代码。
中继器:
<asp:Repeater ID="repeaterAddresses" ViewStateMode="Enabled" DataSourceID="sqlFacilityAddresses" runat="server">
<ItemTemplate>
<Select:Address ID="AddressControl" runat="server" />
<asp:Button ID="btnMarkAsBilling" runat="server" EnableViewState="true" CommandName="Billing" Text="Mark as billing address" />
<asp:button ID="btnMarkAsPhysical" runat="server" EnableViewState="true" CommandName="Physical" Text="Mark as physical address" />
</ItemTemplate>
</asp:Repeater>
代码背后:
Protected Sub repeaterAddresses_ItemCreated(ByVal sender As Object, ByVal e As RepeaterItemEventArgs) Handles repeaterAddresses.ItemCreated
If Not IsNothing(DirectCast(e.Item.DataItem, DataRowView)) Then
If (e.Item.ItemType = ListItemType.Item) Or (e.Item.ItemType = ListItemType.AlternatingItem) Then
Dim addressControl As Address = DirectCast(e.Item.FindControl("AddressControl"), Address)
addressControl.AddressID = CInt(DirectCast(e.Item.DataItem, DataRowView)("Address_ID").ToString())
Dim btnBilling As Button = DirectCast(e.Item.FindControl("btnMarkAsBilling"), Button)
btnBilling.CommandArgument = CInt(DirectCast(e.Item.DataItem, DataRowView)("Address_ID").ToString())
Dim btnPhysical As Button = DirectCast(e.Item.FindControl("btnMarkAsPhysical"), Button)
btnPhysical.CommandArgument = CInt(DirectCast(e.Item.DataItem, DataRowView)("Address_ID").ToString())
End If
End If
End Sub
Protected Sub repeaterAddress_ItemCommand(ByVal sender As Object, ByVal e As RepeaterCommandEventArgs) Handles repeaterAddresses.ItemCommand
Dim conn As New SqlConnection(ConfigurationManager.ConnectionStrings("Trustaff_ESig2").ConnectionString)
Dim button As Button = CType(e.CommandSource, Button)
Select Case e.CommandName
Case "Billing"
Dim cmdBillingAddress As New SqlCommand("[SP_Facility_UpdateBillingAddress]", conn)
With cmdBillingAddress
.CommandType = CommandType.StoredProcedure
.Parameters.Add(New SqlParameter("@Facility_ID", DbType.Int32)).Value = sqlFacilityAddresses.SelectParameters("Facility_ID").DefaultValue
.Parameters.Add(New SqlParameter("@BillingAddress_ID", DbType.Int32)).Value = e.CommandArgument
End With
conn.Open()
cmdBillingAddress.ExecuteNonQuery()
conn.Close()
Case "Physical"
Dim cmdPhysicalAddress As New SqlCommand("[SP_Facility_UpdatePhysicalAddress]", conn)
With cmdPhysicalAddress
.CommandType = CommandType.StoredProcedure
.Parameters.Add(New SqlParameter("@Facility_ID", DbType.Int32)).Value = sqlFacilityAddresses.SelectParameters("Facility_ID").DefaultValue
.Parameters.Add(New SqlParameter("@PhysicalAddress_ID", DbType.Int32)).Value = e.CommandArgument
End With
conn.Open()
cmdPhysicalAddress.ExecuteNonQuery()
conn.Close()
End Select
PopulateBillingPhysicalAddresses(sqlFacilityAddresses.SelectParameters("Facility_ID").DefaultValue)
End Sub
答案 0 :(得分:11)
试试这个:
<asp:Button ID="btnMarkAsBilling" runat="server" EnableViewState="true"
CommandName="Billing" Text="Mark as billing address"
CommandArgument='<%# Eval("Address_ID") %>'/>
请注意属性值周围的单引号。如果它们是双引号,ASP.NET将不会执行服务器端数据绑定代码。您需要从后面的代码中删除CommandArgument
分配。
Address_ID
将需要是您要与转发器数据绑定的对象的属性。