根据此代码，我有一个带有DataPager的ASP.NET ListView：
<asp:ListView ID="TicketsPerPersonListView" runat="server" DataSourceID="ObjectDataSource1">
<EmptyDataTemplate>
-- No Records Found --
</EmptyDataTemplate>
<ItemTemplate>
<tr style="display: table-row;">
<td>
<a href="viewticket.aspx?id=<%#Eval("ticket_id")%>">#<%# Eval("TicketID")%>-
<%# Eval("ShortDesc")%></a>
</td>
<td>
<%# Eval("StatusName")%>
</td>
<td style="text-align: right; padding-right: 60px;">
<%# Eval("StatusDescription")%>
</td>
<td style="text-align: right; padding-right: 60px;">
<%# Eval("TimeLastAction")%>
</td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table>
<thead>
<tr>
<th>
Title
</th>
<th style="text-align: right; padding-right: 60px;">
Current Status
</th>
<th style="text-align: right; padding-right: 60px;">
Latest Action
</th>
<th style="text-align: right; padding-right: 60px;">
Last Viewed
</th>
</tr>
</thead>
<tfoot>
<tr>
<td colspan="5">
<div class="pagination">
<asp:DataPager ID="TicketsPerPersonDataPager" runat="server" PagedControlID="TicketsPerPersonListView"
PageSize="10">
<Fields>
<asp:NextPreviousPagerField FirstPageText="<<" ShowFirstPageButton="True" ShowNextPageButton="False"
ShowPreviousPageButton="False" />
<asp:NumericPagerField CurrentPageLabelCssClass="graybutton pagelink active" NumericButtonCssClass="graybutton pagelink" />
<asp:NextPreviousPagerField LastPageText=">>" ShowLastPageButton="True" ShowNextPageButton="False"
ShowPreviousPageButton="False" />
</Fields>
</asp:DataPager>
</div>
</td>
</tr>
</tfoot>
<tbody>
<asp:PlaceHolder runat="server" ID="itemPlaceholder"></asp:PlaceHolder>
<tr style="display: table-row;">
</tr>
</tbody>
</table>
</LayoutTemplate>
</asp:ListView>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" EnablePaging="True" SelectMethod="FindByUserID"
TypeName="Xyratex.XCS.Services.TicketService" StartRowIndexParameterName="startRowIndex"
MaximumRowsParameterName="maximumRows" SelectCountMethod="CountByUserID">
<SelectParameters>
<asp:Parameter Name="userID" DbType="Int64" DefaultValue="79" />
<asp:ControlParameter Name="custID" ControlID="DDCaller" ConvertEmptyStringToNull="True"
DefaultValue="" />
<asp:ControlParameter Name="company" ControlID="DDCompany" ConvertEmptyStringToNull="True"
DefaultValue="" />
<asp:ControlParameter Name="owner" ControlID="DDOwner" ConvertEmptyStringToNull="True"
DefaultValue="" />
<asp:ControlParameter Name="action" ControlID="DDAction" ConvertEmptyStringToNull="True"
DefaultValue="" />
<asp:ControlParameter Name="status" ControlID="DDCurrentStatus" ConvertEmptyStringToNull="True"
DefaultValue="" />
</SelectParameters>
</asp:ObjectDataSource>
因此，为ObjectDataSource提供数据的VB.NET代码是：
''' <summary>
''' Finds all the <see cref="Xyratex.XCS.Model.Tickets.Ticket" /> objects belonging to the specified user ID
''' </summary>
''' <param name="userID">The id of the user to find tickets for</param>
''' <param name="startRowIndex">The starting index of the portion of the recordset</param>
''' <param name="maximumRows">The maximum amount of rows to return</param>
''' <param name="custID">The id of the customer to find tickets for</param>
''' <param name="company">The company name to find tickets for</param>
''' <param name="owner">The owner to find tickets for</param>
''' <param name="action">The action to find tickets for</param>
''' <param name="status">The status of tickets to find.</param>
''' <returns>A <see cref="System.Collections.Generic.IList(Of Xyratex.XCS.Model.Tickets.Ticket)" /> object</returns>
''' <remarks>XY01\rpenfold 30 January 2012</remarks>
Public Function FindByUserID(ByVal userID As Long,
ByVal startRowIndex As Long,
ByVal maximumRows As Long,
ByVal custID As Long?,
ByVal company As String,
ByVal owner As Integer?,
ByVal action As Char?,
ByVal status As Long?) As List(Of LightWeightTicket) Implements ITicketRepository.FindByUserID
'Start a new session and run the query
Using session As NHibernate.ISession = SessionFactory.GetNewSession()
Dim query As NHibernate.IQuery = session.GetNamedQuery("Select_AllTickets_ByUserID_RyanTest")
query.SetInt64("user_id", userID)
Select Case custID.HasValue
Case True
query.SetInt64("cust_id", custID.Value)
Case False
query.SetString("cust_id", Nothing) 'SetString makes it NULL
End Select
Select Case String.IsNullOrWhiteSpace(company)
Case True
query.SetString("company", Nothing)
Case False
query.SetString("company", company) 'SetString makes it NULL
End Select
Select Case owner.HasValue
Case True
query.SetInt32("owner", owner.Value)
Case False
query.SetString("owner", Nothing) 'SetString makes it NULL
End Select
Select Case action.HasValue
Case True
query.SetCharacter("action", action.Value)
Case False
query.SetString("action", Nothing) 'SetString makes it NULL
End Select
Select Case status.HasValue
Case True
query.SetInt64("status", status.Value)
Case False
query.SetString("status", Nothing) 'SetString makes it NULL
End Select
query.SetInt64("startRowIndex", startRowIndex)
query.SetInt64("maximumRows", maximumRows)
Return New List(Of LightWeightTicket)(query.List(Of LightWeightTicket)())
End Using
End Function
当我加载页面时，收到错误“容量小于当前大小”。堆栈跟踪是这样的：
[ArgumentOutOfRangeException: capacity was less than the current size.
参数名称：值] System.Collections.ArrayList.set_Capacity（Int32 value）+9360651 System.Web.UI.WebControls.ListView.CreateChildControls（IEnumerable dataSource，Boolean dataBinding）+712 System.Web.UI.WebControls.ListView.PerformDataBinding（IEnumerable data）+35 System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback（IEnumerable data）+128 System.Web.UI.DataSourceView.Select（DataSourceSelectArguments arguments，DataSourceViewSelectCallback callback）+33 System.Web.UI.WebControls.DataBoundControl.PerformSelect（）+ 143 System.Web.UI.WebControls.ListView.PerformSelect（）+113 System.Web.UI.WebControls.BaseDataBoundControl.DataBind（）+ 74 System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound（）+66 System.Web.UI.WebControls.ListView.CreateChildControls（）+55 System.Web.UI.Control.EnsureChildControls（）+ 102 System.Web.UI.Control.PreRenderRecursiveInternal（）+ 42 System.Web.UI.Control.PreRenderRecursiveInternal（）+ 175 System.Web.UI.Control.PreRenderRecursiveInternal（）+ 175 System.Web.UI.Page.ProcessRequestMain（Boolean includeStagesBeforeAsyncPoint，Boolean includeStagesAfterAsyncPoint）+2496
有谁知道该怎么办？
提前致谢，
赖安
答案 0 :(得分：3)
我解决了！
count方法返回System.Int64。当它被修改为System.Int32时，它有效！