即使在调用gv.update和up.update时，删除后选项卡中的Gridview也不会更新 [英] Gridview in tab does not update after delete, even when calling gv.update and up.update
本文介绍了即使在调用gv.update和up.update时，删除后选项卡中的Gridview也不会更新的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我遇到了一个gridview，它位于一个包含更新面板的选项卡式面板上。网格显示客户过去购买的商品，它链接到表单上的clientID标签，但主键是亚麻。
我使用内置更新，一切正常，我使用内置删除（即我没有编写代码，但它被调用），但想添加删除确认并停止工作，所以我使用rowcommand进行删除，它删除数据罚款，
但是当我重新绑定网格并更新面板时它没有显示在屏幕上，如果我强制刷新页面，则gridview会显示正确的日期。
这是HTML部分代码：
< ajaxToolkit：TabContainer ID =" tabcCustomer" RUNAT = QUOT;服务器" ActiveTabIndex = QUOT 1 QUOT;的AutoPostBack = QUOT;真" >
< ajaxToolkit：TabPanel runat =" server" HeaderText =" Next Required" ID = QUOT; tabpnlNextRequired">
< HeaderTemplate>需要下一个项目< / HeaderTemplate>
< ContentTemplate>
< asp：UpdatePanel ID =" upnlNextItems" RUNAT = QUOT;服务器"的UpdateMode = QUOT;条件" ChildrenAsTriggers = QUOT;真" >
< ContentTemplate>
< div style =" padding：4px">
// ...第一个标签中的代码
< / div>
< / ContentTemplate>
<触发器>
< asp：AsyncPostBackTrigger ControlID =" btnForceNext"事件名称= QUOT;按一下[ />
< /触发器>
< / asp：UpdatePanel>
< / ContentTemplate>
< / ajaxToolkit：TabPanel>
< ajaxToolkit：TabPanel runat =" server"的HeaderText = QUOT;物品" ID = QUOT; tabpnlItems">
< HeaderTemplate>客户使用情况< / HeaderTemplate>
< ContentTemplate>
< asp：UpdateProgress ID =" updtprgItems" RUNAT = QUOT;服务器" AssociatedUpdatePanelID = QUOT; upnlItems">
< ProgressTemplate>
< img src =" ../ images / animi / BlueArrowsUpdate.gif" ALT ="更新"宽度= QUOT; 16"高度= QUOT; 16" />请等待.....< / ProgressTemplate>
< / asp：UpdateProgress>
< asp：UpdatePanel ID =" upnlItems" RUNAT = QUOT;服务器"的UpdateMode = QUOT;条件" >
< ContentTemplate>
< div class =" simpleForm" style =" padding：4px">
< div class =" simpleLightGreenForm">
< asp：GridView ID =" gvItems" RUNAT = QUOT;服务器" AllowSorting = QUOT;真" CssClass =" TblWhite small" EmptyDataText ="还没有数据"
AutoGenerateColumns =" False"的DataSourceID = QUOT; odsItemUsage" AllowPaging = QUOT;真" PagerSettings模式= QUOT; NextPreviousFirstLast"
DataKeyNames =" ClientUsageLineNo" OnRowCommand = QUOT; gvItems_RowCommand" DataKey = QUOT; ClientUsageLineNo"
PageSize =" 15" PagerSettings-FirstPageImageUrl = QUOT;〜/图片/ imgButtons / FirstPage.gif"
PagerSettings-LastPageImageUrl ="〜/ images / imgButtons / LastPage.gif"
PagerSettings-NextPageImageUrl ="〜/ images / imgButtons / NextPage.gif" PagerSettings-PreviousPageImageUrl = QUOT;〜/图片/ imgButtons / LastPage.gif" >
< Columns>
< asp：TemplateField ShowHeader =" False">
< EditItemTemplate>
< asp：ImageButton ID =" UpdateButton" RUNAT = QUOT;服务器"的CausesValidation = QUOT;真"的CommandName = [更新"
AlternateText =" Update"的ImageUrl = QUOT;〜/图片/ imgButtons / UpdateItem.gif" />
& nbsp;< asp：ImageButton ID =" CancelButton" RUNAT = QUOT;服务器"的CausesValidation = QUOT假QUOT;的CommandName = QUOT;取消]
AlternateText ="取消"的ImageUrl = QUOT;〜/图片/ imgButtons / CancelItem.gif" />
< / EditItemTemplate>
< ItemTemplate>
< asp：ImageButton ID =" EditButton" RUNAT = QUOT;服务器"的CausesValidation = QUOT假QUOT;的CommandName = QUOT;编辑"
AlternateText ="编辑"的ImageUrl = QUOT;〜/图片/ imgButtons / EditItem.gif" />&安培; NBSP;
< asp：ImageButton ID =" DeleteButton" RUNAT = QUOT;服务器"的CausesValidation = QUOT假QUOT;的CommandName = QUOT;删除"
AlternateText ="删除"的ImageUrl = QUOT;〜/图片/ imgButtons / DelItem.gif"
OnClientClick ="返回确认（'您确定要删除此项吗？'）;"
CommandArgument ='<％＃Eval（" ClientUsageLineNo"）％>'/>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =" Date"的SortExpression = QUOT;日期和QUOT;>
< EditItemTemplate>
< asp：TextBox ID =" tbxDate" RUNAT = QUOT;服务器" Text ='<％＃Bind（" ItemDate"，" {0：d}"）％>'/>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =" lblData" RUNAT = QUOT;服务器" Text ='<％＃Bind（" ItemDate"，" {0：d}"）％>'/>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =" Item" >
< EditItemTemplate>
< asp：DropDownList ID =" ddlItems" RUNAT = QUOT;服务器"的DataSourceID = QUOT; odsItems"
DataTextField =" ItemDesc" DataValueField = QUOT; ItemTypeID" AppendDataBoundItems = QUOT;真"
SelectedValue ='<％＃Bind（" ItemProvidedID"）％>'>
< asp：ListItem Value =" 0"文本= QUOT; N / A" />
< / asp：DropDownList>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =" ItemDescLabel" RUNAT = QUOT;服务器" Text ='<％＃GetItemDesc（（int）Eval（" ItemProvidedID"））％>'/>
< / ItemTemplate>
< / asp：TemplateField>
< asp：BoundField DataField =" AmountProvided"的HeaderText = QUOT;数量"
SortExpression =" AmountProvided" />
< asp：TemplateField HeaderText =" Packaging"的SortExpression = QUOT; PackagingID">
< EditItemTemplate>
< asp：DropDownList ID =" ddlPackaging" RUNAT = QUOT;服务器"的DataSourceID = QUOT; odsPackagingTypes"
DataTextField =" Description" DataValueField = QUOT; PackagingID" AppendDataBoundItems = QUOT;真"
SelectedValue ='<％＃Bind（" PackagingID"）％>'>
< asp：ListItem Value =" 0"文本= QUOT; N / A" />
< / asp：DropDownList>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =" PackagingIDLabel" RUNAT = QUOT;服务器" Text ='<％＃GetPackagingDesc（（int）Eval（" PackagingID"））％>'>< / asp：Label>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =" Prep Type"的SortExpression = QUOT; PrepTypeID">
< EditItemTemplate>
< asp：TextBox ID =" PrepTypeIDTextBox" RUNAT = QUOT;服务器" Text ='<％＃Bind（" PrepTypeID"）％>'>< / asp：TextBox>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =" PrepTypeIDLabel" RUNAT = QUOT;服务器" Text ='<％＃Bind（" PrepTypeID"）％>'>< / asp：Label>
< / ItemTemplate>
< / asp：TemplateField>
< asp：BoundField DataField =" Notes"的HeaderText = QUOT;备注"
SortExpression =" Notes" />
< asp：BoundField DataField =" CustomerID"可见= QUOT假QUOT; />
< asp：BoundField DataField =" ClientUsageLineNo"可见= QUOT假QUOT; />
< / Columns>
< PagerSettings FirstPageImageUrl ="〜/ images / imgButtons / FirstPage.gif" LastPageImageUrl = QUOT;〜/图片/ imgButtons / LastPage.gif"模式= QUOT; NumericFirstLast" NextPageImageUrl = QUOT;〜/图片/ imgButtons / NextPage.gif" PreviousPageImageUrl = QUOT;〜/图片/ imgButtons / LastPage.gif" />
< / asp：GridView>
< / div>
< / div>
< / ContentTemplate>
<触发器>
< asp：AsyncPostBackTrigger ControlID =" gvItems"事件名称= QUOT; RowCommand" />
< /触发器>
< / asp：UpdatePanel>
< / ContentTemplate>
< / ajaxToolkit：TabPanel>
< / ajaxToolkit：TabContainer>
< asp：ObjectDataSource ID =" odsItemUsage" RUNAT = QUOT;服务器"类型名= QUOT; TrackerDotNet.control.ItemUsageTbl"
SortParameterName =" SortBy"
SelectMethod =" GetAllItemsUsed"
OldValuesParameterFormatString =" original_ {0}" UpdateMethod = QUOT; UpdateItemsUsed" DeleteMethod = QUOT; DeleteItemLine" >
< DeleteParameters>
< asp：Parameter Name =" ClientUsageLineNo"类型=" Int64的" />
< / DeleteParameters>
< SelectParameters>
< asp：ControlParameter ControlID =" CompanyIDLabel"默认值= QUOT; 0"
Name =" pCustomerID"属性名= QUOT;文本"类型=" Int64的" />
< asp：参数DefaultValue ="& quot; Date& quot;"名称= QUOT; SortBy"类型="字符串" />
< / SelectParameters>
< UpdateParameters>
< asp：参数名称=" CustomerID"类型=" Int64的" />
< asp：参数名称=" ItemDate"类型=" DateTime的" />
< asp：参数名称=" ItemProvidedID"类型="&的Int32 QUOT; />
< asp：参数名称=" AmountProvided"类型="双" />
< asp：参数名称=" PrepTypeID"类型="&的Int32 QUOT; />
< asp：参数名称=" PackagingID"类型="&的Int32 QUOT; />
< asp：参数名称="注释"类型="字符串" />
< asp：Parameter Name =" original_ClientUsageLineNo"类型=" Int64的" />
< / UpdateParameters>
< / asp：ObjectDataSource>
rowcommand背后的代码，它使用keyfield直接调用objectdatasource并删除该行然后更新网格和updatepanel - 但没有任何反应，除了udpdateprogress显示一段时间，显示udpdate事件
被触发：
protected void gvItems_RowCommand（object sender，GridViewCommandEventArgs e）
{
if（e.CommandName ==" Delete"）
{
ItemUsageTbl _ItemUsage = new ItemUsageTbl（）;
_ItemUsage.ClientUsageLineNo = Convert.ToInt64（e.CommandArgument）;
_ItemUsage.DeleteItemLine（_ItemUsage.ClientUsageLineNo）;
gvItems.DataBind（）;
upnlItems.Update（）;
}
}
Warren
解决方案
请在ASP.NET论坛中发布ASP.NET问题：
http：//forums.asp。净
I have a problem with a gridview that sits on a tabbed panel, which contains an update panel. The grid displays items a client has purchased in the past, it links to the clientID label on the form, but the primary key is the linenumber.
I use the builtin update and everything work well, I was using the built in Delete (i.e. I write no code but it gets called) but wanted to add a confirmation of delete and that stopped working, so I used rowcommand to do the delete, it deletes the data fine, but when I rebind the grid and update the panel it does not show on the screen, if I force a refresh of the page the gridview then shows the correct date.
Here is the HTML portion of the code:
<ajaxToolkit:TabContainer ID="tabcCustomer" runat="server" ActiveTabIndex="1" AutoPostBack="true" >
<ajaxToolkit:TabPanel runat="server" HeaderText="Next Required" ID="tabpnlNextRequired">
<HeaderTemplate>Next Items Required</HeaderTemplate>
<ContentTemplate>
<asp:UpdatePanel ID="upnlNextItems" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true" >
<ContentTemplate>
<div style="padding:4px">
//... code in the first tab
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnForceNext" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</ContentTemplate>
</ajaxToolkit:TabPanel>
<ajaxToolkit:TabPanel runat="server" HeaderText="Items" ID="tabpnlItems">
<HeaderTemplate>Customer Usage</HeaderTemplate>
<ContentTemplate>
<asp:UpdateProgress ID="updtprgItems" runat="server" AssociatedUpdatePanelID="upnlItems">
<ProgressTemplate>
<img src="../images/animi/BlueArrowsUpdate.gif" alt="updating" width="16" height="16" />please wait.....</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upnlItems" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<div class="simpleForm" style="padding: 4px">
<div class="simpleLightGreenForm">
<asp:GridView ID="gvItems" runat="server" AllowSorting="True" CssClass="TblWhite small" EmptyDataText="no data yet"
AutoGenerateColumns="False" DataSourceID="odsItemUsage" AllowPaging="True" PagerSettings-Mode="NextPreviousFirstLast"
DataKeyNames="ClientUsageLineNo" OnRowCommand="gvItems_RowCommand" DataKey="ClientUsageLineNo"
PageSize="15" PagerSettings-FirstPageImageUrl="~/images/imgButtons/FirstPage.gif"
PagerSettings-LastPageImageUrl="~/images/imgButtons/LastPage.gif"
PagerSettings-NextPageImageUrl="~/images/imgButtons/NextPage.gif" PagerSettings-PreviousPageImageUrl="~/images/imgButtons/LastPage.gif" >
<Columns>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:ImageButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update"
AlternateText="Update" ImageUrl="~/images/imgButtons/UpdateItem.gif" />
<asp:ImageButton ID="CancelButton" runat="server" CausesValidation="False" CommandName="Cancel"
AlternateText="Cancel" ImageUrl="~/images/imgButtons/CancelItem.gif" />
</EditItemTemplate>
<ItemTemplate>
<asp:ImageButton ID="EditButton" runat="server" CausesValidation="False" CommandName="Edit"
AlternateText="Edit" ImageUrl="~/images/imgButtons/EditItem.gif" />
<asp:ImageButton ID="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete"
AlternateText="Delete" ImageUrl="~/images/imgButtons/DelItem.gif"
OnClientClick="return confirm('Are you sure you want to delete this item?');"
CommandArgument='<%# Eval("ClientUsageLineNo") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date" SortExpression="Date">
<EditItemTemplate>
<asp:TextBox ID="tbxDate" runat="server" Text='<%# Bind("ItemDate", "{0:d}") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblData" runat="server" Text='<%# Bind("ItemDate", "{0:d}") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item" >
<EditItemTemplate>
<asp:DropDownList ID="ddlItems" runat="server" DataSourceID="odsItems"
DataTextField="ItemDesc" DataValueField="ItemTypeID" AppendDataBoundItems="true"
SelectedValue='<%# Bind("ItemProvidedID") %>'>
<asp:ListItem Value="0" Text="n/a" />
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="ItemDescLabel" runat="server" Text='<%# GetItemDesc((int)Eval("ItemProvidedID")) %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="AmountProvided" HeaderText="Qty"
SortExpression="AmountProvided" />
<asp:TemplateField HeaderText="Packaging" SortExpression="PackagingID">
<EditItemTemplate>
<asp:DropDownList ID="ddlPackaging" runat="server" DataSourceID="odsPackagingTypes"
DataTextField="Description" DataValueField="PackagingID" AppendDataBoundItems="true"
SelectedValue = '<%# Bind("PackagingID") %>' >
<asp:ListItem Value="0" Text="n/a" />
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="PackagingIDLabel" runat="server" Text='<%# GetPackagingDesc((int)Eval("PackagingID")) %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Prep Type" SortExpression="PrepTypeID">
<EditItemTemplate>
<asp:TextBox ID="PrepTypeIDTextBox" runat="server" Text='<%# Bind("PrepTypeID") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="PrepTypeIDLabel" runat="server" Text='<%# Bind("PrepTypeID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Notes" HeaderText="Notes"
SortExpression="Notes" />
<asp:BoundField DataField="CustomerID" Visible="False" />
<asp:BoundField DataField="ClientUsageLineNo" Visible="False" />
</Columns>
<PagerSettings FirstPageImageUrl="~/images/imgButtons/FirstPage.gif" LastPageImageUrl="~/images/imgButtons/LastPage.gif" Mode="NumericFirstLast" NextPageImageUrl="~/images/imgButtons/NextPage.gif" PreviousPageImageUrl="~/images/imgButtons/LastPage.gif" />
</asp:GridView>
</div>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="gvItems" EventName="RowCommand" />
</Triggers>
</asp:UpdatePanel>
</ContentTemplate>
</ajaxToolkit:TabPanel>
</ajaxToolkit:TabContainer>
<asp:ObjectDataSource ID="odsItemUsage" runat="server" TypeName="TrackerDotNet.control.ItemUsageTbl"
SortParameterName="SortBy"
SelectMethod="GetAllItemsUsed"
OldValuesParameterFormatString="original_{0}" UpdateMethod="UpdateItemsUsed" DeleteMethod="DeleteItemLine" >
<DeleteParameters>
<asp:Parameter Name="ClientUsageLineNo" Type="Int64" />
</DeleteParameters>
<SelectParameters>
<asp:ControlParameter ControlID="CompanyIDLabel" DefaultValue="0"
Name="pCustomerID" PropertyName="Text" Type="Int64" />
<asp:Parameter DefaultValue=""Date"" Name="SortBy" Type="String" />
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="CustomerID" Type="Int64" />
<asp:Parameter Name="ItemDate" Type="DateTime" />
<asp:Parameter Name="ItemProvidedID" Type="Int32" />
<asp:Parameter Name="AmountProvided" Type="Double" />
<asp:Parameter Name="PrepTypeID" Type="Int32" />
<asp:Parameter Name="PackagingID" Type="Int32" />
<asp:Parameter Name="Notes" Type="String" />
<asp:Parameter Name="original_ClientUsageLineNo" Type="Int64" />
</UpdateParameters>
</asp:ObjectDataSource>
The the code behind for the rowcommand, it calls the objectdatasource directly using the keyfield and deletes the row then updates the grid and the updatepanel - but nothing happens, except the udpdateprogress shows for a while, showing the udpdate event is triggered :
protected void gvItems_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Delete")
{
ItemUsageTbl _ItemUsage = new ItemUsageTbl();
_ItemUsage.ClientUsageLineNo = Convert.ToInt64(e.CommandArgument);
_ItemUsage.DeleteItemLine(_ItemUsage.ClientUsageLineNo);
gvItems.DataBind();
upnlItems.Update();
}
}
Warren
解决方案
Please post ASP.NET questions in the ASP.NET forums: http://forums.asp.net
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