[英]Extracting Data from listview
我有一個listview“ ListView1”，它鏈接到我的客戶mssql數據庫上的客戶表。 現在，我已將OnItemDeleting= "ArchiveBeforeDelete"添加到Listview，因為我希望在從普通數據庫中刪除客戶之前將其存檔（移至我的存檔客戶的數據庫customer表中）。 我已經能夠使用e.ItemIndex檢索selectedindex，但是現在我不知道如何使用索引來提取數據，更具體地說是僅提取CustomerID部分。 我瀏覽了屬性和方法，但找不到有效的方法。
編輯：這是.aspx頁中的列表視圖中的代碼
<asp:ListView ID="ListView1" runat="server" DataKeyNames="CustomerId"
DataSourceID="SqlDataSource1" OnItemDeleting= "ArchiveBeforeDelete">
<AlternatingItemTemplate>
<tr style="background-color: #FAFAD2;color: #284775;">
<td>
<asp:Button ID="ArchiveButton" runat="server" CommandName="Delete"
Text="Archive" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="CustomerIdLabel" runat="server"
Text='<%# Eval("CustomerId") %>' />
</td>
<td>
<asp:Label ID="CustomerStatusLabel" runat="server"
Text='<%# Eval("CustomerStatus") %>' />
</td>
<td>
<asp:Label ID="CustomerFirstNameLabel" runat="server"
Text='<%# Eval("CustomerFirstName") %>' />
</td>
<td>
<asp:Label ID="CustomerLastNameLabel" runat="server"
Text='<%# Eval("CustomerLastName") %>' />
</td>
<td>
<asp:Label ID="CompanyNameLabel" runat="server"
Text='<%# Eval("CompanyName") %>' />
</td>
<td>
<asp:Label ID="CustomerEmailLabel" runat="server"
Text='<%# Eval("CustomerEmail") %>' />
</td>
<td>
<asp:Label ID="CustomerTypeLabel" runat="server"
Text='<%# Eval("CustomerType") %>' />
</td>
<td>
<asp:Label ID="CustomerPhoneNumberLabel" runat="server"
Text='<%# Eval("CustomerPhoneNumber") %>' />
</td>
<td>
<asp:Label ID="CustomerSubscriptionTypeLabel" runat="server"
Text='<%# Eval("CustomerSubscriptionType") %>' />
</td>
<td>
<asp:Label ID="CustomerPaymentMethodLabel" runat="server"
Text='<%# Eval("CustomerPaymentMethod") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDayLabel" runat="server"
Text='<%# Eval("CustomerPickUpDay") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDay2Label" runat="server"
Text='<%# Eval("CustomerPickUpDay2") %>' />
</td>
</tr>
</AlternatingItemTemplate>
<EditItemTemplate>
<tr style="background-color: #FFCC66;color: #000080;">
<td>
<asp:Button ID="UpdateButton" runat="server" CommandName="Update"
Text="Update" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel"
Text="Cancel" />
</td>
<td>
<asp:Label ID="CustomerIdLabel1" runat="server"
Text='<%# Eval("CustomerId") %>' />
</td>
<td>
<asp:TextBox ID="CustomerStatusTextBox" runat="server"
Text='<%# Bind("CustomerStatus") %>' />
</td>
<td>
<asp:TextBox ID="CustomerFirstNameTextBox" runat="server"
Text='<%# Bind("CustomerFirstName") %>' />
</td>
<td>
<asp:TextBox ID="CustomerLastNameTextBox" runat="server"
Text='<%# Bind("CustomerLastName") %>' />
</td>
<td>
<asp:TextBox ID="CompanyNameTextBox" runat="server"
Text='<%# Bind("CompanyName") %>' />
</td>
<td>
<asp:TextBox ID="CustomerEmailTextBox" runat="server"
Text='<%# Bind("CustomerEmail") %>' />
</td>
<td>
<asp:TextBox ID="CustomerTypeTextBox" runat="server"
Text='<%# Bind("CustomerType") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPhoneNumberTextBox" runat="server"
Text='<%# Bind("CustomerPhoneNumber") %>' />
</td>
<td>
<asp:TextBox ID="CustomerSubscriptionTypeTextBox" runat="server"
Text='<%# Bind("CustomerSubscriptionType") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPaymentMethodTextBox" runat="server"
Text='<%# Bind("CustomerPaymentMethod") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPickUpDayTextBox" runat="server"
Text='<%# Bind("CustomerPickUpDay") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPickUpDay2TextBox" runat="server"
Text='<%# Bind("CustomerPickUpDay2") %>' />
</td>
</tr>
</EditItemTemplate>
<EmptyDataTemplate>
<table runat="server"
style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;">
<tr>
<td>
No data was returned.</td>
</tr>
</table>
</EmptyDataTemplate>
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert"
Text="Insert" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel"
Text="Clear" />
</td>
<td>
</td>
<td>
<asp:TextBox ID="CustomerStatusTextBox" runat="server"
Text='<%# Bind("CustomerStatus") %>' />
</td>
<td>
<asp:TextBox ID="CustomerFirstNameTextBox" runat="server"
Text='<%# Bind("CustomerFirstName") %>' />
</td>
<td>
<asp:TextBox ID="CustomerLastNameTextBox" runat="server"
Text='<%# Bind("CustomerLastName") %>' />
</td>
<td>
<asp:TextBox ID="CompanyNameTextBox" runat="server"
Text='<%# Bind("CompanyName") %>' />
</td>
<td>
<asp:TextBox ID="CustomerEmailTextBox" runat="server"
Text='<%# Bind("CustomerEmail") %>' />
</td>
<td>
<asp:TextBox ID="CustomerTypeTextBox" runat="server"
Text='<%# Bind("CustomerType") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPhoneNumberTextBox" runat="server"
Text='<%# Bind("CustomerPhoneNumber") %>' />
</td>
<td>
<asp:TextBox ID="CustomerSubscriptionTypeTextBox" runat="server"
Text='<%# Bind("CustomerSubscriptionType") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPaymentMethodTextBox" runat="server"
Text='<%# Bind("CustomerPaymentMethod") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPickUpDayTextBox" runat="server"
Text='<%# Bind("CustomerPickUpDay") %>' />
</td>
<td>
<asp:TextBox ID="CustomerPickUpDay2TextBox" runat="server"
Text='<%# Bind("CustomerPickUpDay2") %>' />
</td>
</tr>
</InsertItemTemplate>
<ItemTemplate>
<tr style="background-color: #FFFBD6;color: #333333;">
<td>
<asp:Button ID="ArchiveButton" runat="server" CommandName="Delete"
Text="Archive" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="CustomerIdLabel" runat="server"
Text='<%# Eval("CustomerId") %>' />
</td>
<td>
<asp:Label ID="CustomerStatusLabel" runat="server"
Text='<%# Eval("CustomerStatus") %>' />
</td>
<td>
<asp:Label ID="CustomerFirstNameLabel" runat="server"
Text='<%# Eval("CustomerFirstName") %>' />
</td>
<td>
<asp:Label ID="CustomerLastNameLabel" runat="server"
Text='<%# Eval("CustomerLastName") %>' />
</td>
<td>
<asp:Label ID="CompanyNameLabel" runat="server"
Text='<%# Eval("CompanyName") %>' />
</td>
<td>
<asp:Label ID="CustomerEmailLabel" runat="server"
Text='<%# Eval("CustomerEmail") %>' />
</td>
<td>
<asp:Label ID="CustomerTypeLabel" runat="server"
Text='<%# Eval("CustomerType") %>' />
</td>
<td>
<asp:Label ID="CustomerPhoneNumberLabel" runat="server"
Text='<%# Eval("CustomerPhoneNumber") %>' />
</td>
<td>
<asp:Label ID="CustomerSubscriptionTypeLabel" runat="server"
Text='<%# Eval("CustomerSubscriptionType") %>' />
</td>
<td>
<asp:Label ID="CustomerPaymentMethodLabel" runat="server"
Text='<%# Eval("CustomerPaymentMethod") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDayLabel" runat="server"
Text='<%# Eval("CustomerPickUpDay") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDay2Label" runat="server"
Text='<%# Eval("CustomerPickUpDay2") %>' />
</td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table runat="server">
<tr runat="server">
<td runat="server">
<table ID="itemPlaceholderContainer" runat="server" border="1"
style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;font-family: Verdana, Arial, Helvetica, sans-serif;">
<tr runat="server" style="background-color: #FFFBD6;color: #333333;">
<th runat="server">
</th>
<th runat="server">
Id</th>
<th runat="server">
Status</th>
<th runat="server">
First Name</th>
<th runat="server">
Last Name</th>
<th runat="server">
Company Name</th>
<th runat="server">
E-mail</th>
<th runat="server">
Type</th>
<th runat="server">
Phone Number</th>
<th runat="server">
Subscription Type</th>
<th runat="server">
Payment Method</th>
<th runat="server">
Pick-Up Day</th>
<th runat="server">
Second Pick-Up Day</th>
</tr>
<tr ID="itemPlaceholder" runat="server">
</tr>
</table>
</td>
</tr>
<tr runat="server">
<td runat="server"
style="text-align: center;background-color: #FFCC66;font-family: Verdana, Arial, Helvetica, sans-serif;color: #333333;">
<asp:DataPager ID="DataPager1" runat="server">
<Fields>
<asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True"
ShowNextPageButton="False" ShowPreviousPageButton="False" />
<asp:NumericPagerField />
<asp:NextPreviousPagerField ButtonType="Button" ShowLastPageButton="True"
ShowNextPageButton="False" ShowPreviousPageButton="False" />
</Fields>
</asp:DataPager>
</td>
</tr>
</table>
</LayoutTemplate>
<SelectedItemTemplate>
<tr style="background-color: #FFCC66;font-weight: bold;color: #000080;">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete"
Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="CustomerIdLabel" runat="server"
Text='<%# Eval("CustomerId") %>' />
</td>
<td>
<asp:Label ID="CustomerStatusLabel" runat="server"
Text='<%# Eval("CustomerStatus") %>' />
</td>
<td>
<asp:Label ID="CustomerFirstNameLabel" runat="server"
Text='<%# Eval("CustomerFirstName") %>' />
</td>
<td>
<asp:Label ID="CustomerLastNameLabel" runat="server"
Text='<%# Eval("CustomerLastName") %>' />
</td>
<td>
<asp:Label ID="CompanyNameLabel" runat="server"
Text='<%# Eval("CompanyName") %>' />
</td>
<td>
<asp:Label ID="CustomerEmailLabel" runat="server"
Text='<%# Eval("CustomerEmail") %>' />
</td>
<td>
<asp:Label ID="CustomerTypeLabel" runat="server"
Text='<%# Eval("CustomerType") %>' />
</td>
<td>
<asp:Label ID="CustomerPhoneNumberLabel" runat="server"
Text='<%# Eval("CustomerPhoneNumber") %>' />
</td>
<td>
<asp:Label ID="CustomerSubscriptionTypeLabel" runat="server"
Text='<%# Eval("CustomerSubscriptionType") %>' />
</td>
<td>
<asp:Label ID="CustomerPaymentMethodLabel" runat="server"
Text='<%# Eval("CustomerPaymentMethod") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDayLabel" runat="server"
Text='<%# Eval("CustomerPickUpDay") %>' />
</td>
<td>
<asp:Label ID="CustomerPickUpDay2Label" runat="server"
Text='<%# Eval("CustomerPickUpDay2") %>' />
</td>
</tr>
</SelectedItemTemplate>
</asp:ListView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConflictDetection="CompareAllValues"
ConnectionString="<%$ ConnectionStrings:tcc_customersConnectionString %>"
DeleteCommand="DELETE FROM [Customers] WHERE [CustomerId] = @original_CustomerId AND [CustomerStatus] = @original_CustomerStatus AND [CustomerFirstName] = @original_CustomerFirstName AND [CustomerLastName] = @original_CustomerLastName AND [CompanyName] = @original_CompanyName AND [CustomerEmail] = @original_CustomerEmail AND [CustomerType] = @original_CustomerType AND [CustomerPhoneNumber] = @original_CustomerPhoneNumber AND [CustomerSubscriptionType] = @original_CustomerSubscriptionType AND [CustomerPaymentMethod] = @original_CustomerPaymentMethod AND [CustomerPickUpDay] = @original_CustomerPickUpDay AND [CustomerPickUpDay2] = @original_CustomerPickUpDay2"
InsertCommand="INSERT INTO [Customers] ([CustomerStatus], [CustomerFirstName], [CustomerLastName], [CompanyName], [CustomerEmail], [CustomerType], [CustomerPhoneNumber], [CustomerSubscriptionType], [CustomerPaymentMethod], [CustomerPickUpDay], [CustomerPickUpDay2]) VALUES (@CustomerStatus, @CustomerFirstName, @CustomerLastName, @CompanyName, @CustomerEmail, @CustomerType, @CustomerPhoneNumber, @CustomerSubscriptionType, @CustomerPaymentMethod, @CustomerPickUpDay, @CustomerPickUpDay2)"
OldValuesParameterFormatString="original_{0}"
SelectCommand="SELECT [CustomerId], [CustomerStatus], [CustomerFirstName], [CustomerLastName], [CompanyName], [CustomerEmail], [CustomerType], [CustomerPhoneNumber], [CustomerSubscriptionType], [CustomerPaymentMethod], [CustomerPickUpDay], [CustomerPickUpDay2] FROM [Customers] ORDER BY [CustomerLastName], [CustomerFirstName], [CustomerId]"
UpdateCommand="UPDATE [Customers] SET [CustomerStatus] = @CustomerStatus, [CustomerFirstName] = @CustomerFirstName, [CustomerLastName] = @CustomerLastName, [CompanyName] = @CompanyName, [CustomerEmail] = @CustomerEmail, [CustomerType] = @CustomerType, [CustomerPhoneNumber] = @CustomerPhoneNumber, [CustomerSubscriptionType] = @CustomerSubscriptionType, [CustomerPaymentMethod] = @CustomerPaymentMethod, [CustomerPickUpDay] = @CustomerPickUpDay, [CustomerPickUpDay2] = @CustomerPickUpDay2 WHERE [CustomerId] = @original_CustomerId AND [CustomerStatus] = @original_CustomerStatus AND [CustomerFirstName] = @original_CustomerFirstName AND [CustomerLastName] = @original_CustomerLastName AND [CompanyName] = @original_CompanyName AND [CustomerEmail] = @original_CustomerEmail AND [CustomerType] = @original_CustomerType AND [CustomerPhoneNumber] = @original_CustomerPhoneNumber AND [CustomerSubscriptionType] = @original_CustomerSubscriptionType AND [CustomerPaymentMethod] = @original_CustomerPaymentMethod AND [CustomerPickUpDay] = @original_CustomerPickUpDay AND [CustomerPickUpDay2] = @original_CustomerPickUpDay2">
<DeleteParameters>
<asp:Parameter Name="original_CustomerId" Type="Int32" />
<asp:Parameter Name="original_CustomerStatus" Type="String" />
<asp:Parameter Name="original_CustomerFirstName" Type="String" />
<asp:Parameter Name="original_CustomerLastName" Type="String" />
<asp:Parameter Name="original_CompanyName" Type="String" />
<asp:Parameter Name="original_CustomerEmail" Type="String" />
<asp:Parameter Name="original_CustomerType" Type="String" />
<asp:Parameter Name="original_CustomerPhoneNumber" Type="String" />
<asp:Parameter Name="original_CustomerSubscriptionType" Type="String" />
<asp:Parameter Name="original_CustomerPaymentMethod" Type="String" />
<asp:Parameter Name="original_CustomerPickUpDay" Type="String" />
<asp:Parameter Name="original_CustomerPickUpDay2" Type="String" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="CustomerStatus" Type="String" />
<asp:Parameter Name="CustomerFirstName" Type="String" />
<asp:Parameter Name="CustomerLastName" Type="String" />
<asp:Parameter Name="CompanyName" Type="String" />
<asp:Parameter Name="CustomerEmail" Type="String" />
<asp:Parameter Name="CustomerType" Type="String" />
<asp:Parameter Name="CustomerPhoneNumber" Type="String" />
<asp:Parameter Name="CustomerSubscriptionType" Type="String" />
<asp:Parameter Name="CustomerPaymentMethod" Type="String" />
<asp:Parameter Name="CustomerPickUpDay" Type="String" />
<asp:Parameter Name="CustomerPickUpDay2" Type="String" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="CustomerStatus" Type="String" />
<asp:Parameter Name="CustomerFirstName" Type="String" />
<asp:Parameter Name="CustomerLastName" Type="String" />
<asp:Parameter Name="CompanyName" Type="String" />
<asp:Parameter Name="CustomerEmail" Type="String" />
<asp:Parameter Name="CustomerType" Type="String" />
<asp:Parameter Name="CustomerPhoneNumber" Type="String" />
<asp:Parameter Name="CustomerSubscriptionType" Type="String" />
<asp:Parameter Name="CustomerPaymentMethod" Type="String" />
<asp:Parameter Name="CustomerPickUpDay" Type="String" />
<asp:Parameter Name="CustomerPickUpDay2" Type="String" />
<asp:Parameter Name="original_CustomerId" Type="Int32" />
<asp:Parameter Name="original_CustomerStatus" Type="String" />
<asp:Parameter Name="original_CustomerFirstName" Type="String" />
<asp:Parameter Name="original_CustomerLastName" Type="String" />
<asp:Parameter Name="original_CompanyName" Type="String" />
<asp:Parameter Name="original_CustomerEmail" Type="String" />
<asp:Parameter Name="original_CustomerType" Type="String" />
<asp:Parameter Name="original_CustomerPhoneNumber" Type="String" />
<asp:Parameter Name="original_CustomerSubscriptionType" Type="String" />
<asp:Parameter Name="original_CustomerPaymentMethod" Type="String" />
<asp:Parameter Name="original_CustomerPickUpDay" Type="String" />
<asp:Parameter Name="original_CustomerPickUpDay2" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>
然后在代碼隱藏文件中
protected void ArchiveBeforeDelete(object sender, ListViewDeleteEventArgs e)
{
int listIndex = (int)e.ItemIndex;
}
我所擁有的就是索引。 然后我嘗試了類似@ itsme86的建議，但無濟於事...我只想要的是CustomerID，這樣我就可以從表中調用該特定ID，然后插入其他已歸檔的客戶中表...
您應該將CustomerId放在“ tr”標記上，以便可以在事件處理程序中將其取回。 見下文...
<asp:ListView ID="ListView1" runat="server" DataKeyNames="CustomerId"
DataSourceID="SqlDataSource1" OnItemDeleting= "ArchiveBeforeDelete">
<AlternatingItemTemplate>
<tr id="<%# Eval("CustomerId") %>"
style="background-color: #FAFAD2;color: #284775;">
<td>
<asp:Button ID="ArchiveButton" runat="server" CommandName="Delete"
Text="Archive" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td>
<asp:Label ID="CustomerIdLabel" runat="server"
Text='<%# Eval("CustomerId") %>' />
</td>
<td>
<asp:Label ID="CustomerStatusLabel" runat="server"
Text='<%# Eval("CustomerStatus") %>' />
</td>
etc.
因此，正如我在前面的評論中建議的那樣，可以按如下方式在.aspx頁中編輯DeleteCommand：
INSERT INTO ArchivedCustomers SELECT CustomerStatus, CustomerGroup, CustomerFirstName, CustomerLastName, CompanyName, CustomerAddress, CustomerCity, CustomerState, CustomerZipcode, CustomerEmail, CustomerEmail2, CustomerPhoneNumber, CustomerPhoneNumberExt, CustomerType, CustomerSubscriptionType, CustomerCost, CustomerPaymentMethod, CustomerSignUpDate, CustomerPickUpDay, CustomerPickUpDay2, CustomerNotes FROM Customers WHERE CustomerID = @original_CustomerID; DELETE FROM Customers WHERE CustomerId = @original_CustomerId"
如您所見，首先將其插入ArchivedCustomers表中，然后在完成后將其刪除。 不過要注意一件事，我必須將ConflictDetection屬性從CompareAllValues更改為OverwriteChanges，以停止出現錯誤。 如果有人願意解釋，請這樣做，但是現在我只關心它能起作用！ :)非常感謝@ Jake1164，如果您沒有讓我發布該代碼，我認為我不會看到像我一樣快地編輯該命令的功能。
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