C# 如何将此筛选器表达式更改为参数化查询?
大家早上好, 如何将此筛选器表达式转换为参数化查询,但仍显示在gridview中?现在,如果我搜索%^&%*它会崩溃 C#: ASP:C# 如何将此筛选器表达式更改为参数化查询?,c#,javascript,asp.net,webforms,C#,Javascript,Asp.net,Webforms,大家早上好, 如何将此筛选器表达式转换为参数化查询,但仍显示在gridview中?现在,如果我搜索%^&%*它会崩溃 C#: ASP: 管理赢家- | 错误: Like运算符中出错:字符串模式“@#%$%”无效 描述:在执行过程中发生未处理的异常 当前的web请求。请查看堆栈跟踪以了解更多信息 有关错误的信息及其在代码中的来源 异常详细信息:System.Data.EvaluateException:Like中出错 运算符:字符串模式“%@#%$%”无效 源错误: 在执行过程中生成了未处
管理赢家-
|
错误:
Like运算符中出错:字符串模式“@#%$%”无效
描述:在执行过程中发生未处理的异常
当前的web请求。请查看堆栈跟踪以了解更多信息
有关错误的信息及其在代码中的来源
异常详细信息:System.Data.EvaluateException:Like中出错
运算符:字符串模式“%@#%$%”无效
源错误:
在执行过程中生成了未处理的异常
当前web请求。关于货物来源和位置的信息
可以使用下面的异常堆栈跟踪来识别异常
堆栈跟踪:
[EvaluateException:Like运算符中的错误:字符串模式
“%@#%$%”无效。]System.Data.LIKEODE.AnalyzePattern(字符串
pat)+1251846 System.Data.likeode.Eval(数据行,数据行版本
version)+345系统.Data.BinaryNode.EvalBinaryOp(Int32 op,
ExpressionNode左侧、ExpressionNode右侧、DataRow行、DataRowVersion
版本,Int32[]记录编号)+13013System.Data.BinaryNode.Eval(数据行,数据行版本)+29
System.Data.BinaryNode.EvalBinaryOp(Int32操作,ExpressionNode左, ExpressionNode right,DataRow行,DataRowVersion版本,Int32[] recordNos)+13013 System.Data.BinaryNode.Eval(DataRow行, 数据行版本)+29
System.Data.BinaryNode.EvalBinaryOp(Int32操作,ExpressionNode左, ExpressionNode right,DataRow行,DataRowVersion版本,Int32[] recordNos)+13013 System.Data.BinaryNode.Eval(DataRow行, 数据行版本)+29
System.Data.BinaryNode.EvalBinaryOp(Int32操作,ExpressionNode左, ExpressionNode right,DataRow行,DataRowVersion版本,Int32[] recordNos)+13013 System.Data.BinaryNode.Eval(DataRow行, 数据行版本)+29
System.Data.BinaryNode.EvalBinaryOp(Int32操作,ExpressionNode左, ExpressionNode right,DataRow行,DataRowVersion版本,Int32[] recordNos)+13013 System.Data.BinaryNode.Eval(DataRow行, 数据行版本)+29
System.Data.DataExpression.Invoke(DataRow行,DataRowVersion版本) +151 System.Data.Index.AcceptRecord(Int32记录,IFilter筛选器)+103 System.Data.Index.InitRecords(IFilter筛选器)+303 System.Data.Index..ctor(数据表,Int32[]ndexDesc, IndexField[]indexFields,比较'1比较,DataViewRowState 记录状态,IFilter rowFilter)+491
System.Data.DataTable.GetIndex(IndexField[]indexDesc, DataViewRowState记录状态,IFilter rowFilter)+228
System.Data.DataView.UpdateIndex(布尔力,布尔fireEvent) +165 System.Data.DataView.UpdateIndex(布尔力)+12 System.Data.DataView.SetIndex2(字符串newSort,DataViewRowState NewRowState,IFilter newRowFilter,布尔fireEvent)+113
System.Data.DataView.SetIndex(字符串newSort,DataViewRowState 新行状态,IFilter newRowFilter)+17
System.Data.DataView.set_RowFilter(字符串值)+160
System.Web.UI.WebControl.FilteredataSetHelper.CreateFilteredDataView(数据表 表,字符串排序表达式,字符串筛选器表达式,IDictionary 过滤器参数)+396
System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments 参数)+2012
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments) 参数,DataSourceViewSelectCallback)+21
System.Web.UI.WebControls.DataBoundControl.PerformSelect()+143
System.Web.UI.WebControls.BaseDataBoundControl.DataBind()+74
System.Web.UI.WebControls.GridView.DataBind()+4
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound()+66
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +75 System.Web.UI.Control.EnsureChildControl()+102 System.Web.UI.Control.PreRenderRecursiveInternal()+42
System.Web.UI.Control.PreRenderRecursiveInternal()+175
System.Web.UI.Control.PreRenderRecursiveInternal()+175
System.Web.UI.Control.PreRenderRecursiveInternal()+175
System.Web.UI.Control.PreRenderRecursiveInternal()+175
System.Web.UI.Control.PreRenderRecursiveInternal()+175
System.Web.UI.Page.ProcessRequestMain(布尔值 IncludeStages前同步点,布尔值IncludeStages后同步点) +2496 真诚地,
Christopher Witalis Peterson您尝试过将搜索文本参数化为“%”+@searchText++“%”吗?
SelectCommand=“选择[PlayerID]、[昵称]、[UserName]、[ClubNumber]、[FirstName]、[Email]、[LastName]、[DOB]来自[Players],其中昵称如“%”+@昵称+“%”按姓氏排序ASC>
SelectCommand="SELECT [PlayerID], [Nickname], [UserName], [ClubNumber], [FirstName], [Email], [LastName], [DOB] FROM [Players] where Nickname like '%'+@Nickname+'%' order by lastname ASC">
<SelectParameters>
<asp:ControlParameter ControlID="txtWinnersSearch" Name="Nickname" PropertyName="Text" Type="String"/>
</SelectParameters>
</asp:SqlDataSource>
早上好,我很抱歉,没有。你会建议我怎么做呢?谢谢你迄今为止的帮助。诚恳地说,Christopher Witalis PetersonSelectCommand=“选择[PlayerID],[N
<asp:Panel ID="pnlWinners" DefaultButton="BtnWinnersSearch" runat="server" Visible="False">
<table>
<tr>
<td align="center"><b>MANAGE WINNERS</b> -
<asp:Button ID="BtnWinnerAdd" runat="server" Text="Add"
onclick="BtnWinnerAdd_Click" /> |
<asp:TextBox ID="txtWinnersSearch" runat="server" MaxLength="220"></asp:TextBox>
<asp:Button ID="BtnWinnersSearch"
runat="server" Text="Search" onclick="BtnWinnersSearch_Click" />
</td>
</tr>
<tr>
<td>
<asp:GridView ID="GridViewWinners" runat="server" AutoGenerateColumns="False" DataKeyNames="PlayerID"
DataSourceID="SqlDataSource4"
EmptyDataText="There are no winners to display." CellPadding="4"
AllowSorting="True"
onsorting="GridViewWinners_Sorting"
ForeColor="#333333"
Visible="False"
onselectedindexchanged="GridViewWinners_SelectedIndexChanged"
FooterStyle-Wrap="False" HeaderStyle-Wrap="False" PagerStyle-Wrap="False"
RowStyle-Wrap="False" SelectedRowStyle-Wrap="False" Font-Overline="False" >
<AlternatingRowStyle BackColor="White" ForeColor="#284775" HorizontalAlign="Center"
VerticalAlign="Middle" Wrap="False" />
<Columns>
<asp:CommandField ShowSelectButton="True"/>
<asp:BoundField DataField="PlayerID" HeaderText="PlayerID" InsertVisible="False"
ReadOnly="True" SortExpression="PlayerID" Visible="False" />
<asp:BoundField DataField="Nickname" HeaderText="Nickname"
SortExpression="Nickname" ItemStyle-Wrap="False">
<ItemStyle Wrap="False" />
</asp:BoundField>
<asp:BoundField DataField="LastName" HeaderText="Last Name"
SortExpression="LastName" ItemStyle-Wrap="False">
<ItemStyle Wrap="False" />
</asp:BoundField>
<asp:BoundField DataField="FirstName" HeaderText="First Name"
SortExpression="FirstName" />
<asp:BoundField DataField="UserName" HeaderText="UserName"
SortExpression="UserName" />
<asp:BoundField DataField="ClubNumber" HeaderText="Account Number"
SortExpression="ClubNumber" />
<asp:BoundField DataField="Email" HeaderText="Email"
SortExpression="Email" />
<asp:BoundField DataField="DOB" HeaderText="D.O.B."
DataFormatString="{0:d}" SortExpression="DOB" />
</Columns>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"
HorizontalAlign="Center" VerticalAlign="Middle" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333"
HorizontalAlign="Center" VerticalAlign="Middle" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#E9E7E2" />
<SortedAscendingHeaderStyle BackColor="#506C8C" />
<SortedDescendingCellStyle BackColor="#FFFDF8" />
<SortedDescendingHeaderStyle BackColor="#6F8DAE" />
</asp:GridView>
</td>
</tr>
</table>
</asp:Panel>
<asp:SqlDataSource ID="SqlDataSource4" runat="server"
ConnectionString="****"
ProviderName="***"
SelectCommand="SELECT [PlayerID], [Nickname], [UserName], [ClubNumber], [FirstName], [Email], [LastName], [DOB] FROM [Players] order by lastname ASC">
</asp:SqlDataSource>
</asp:Content>
SelectCommand="SELECT [PlayerID], [Nickname], [UserName], [ClubNumber], [FirstName], [Email], [LastName], [DOB] FROM [Players] where Nickname like '%'+@Nickname+'%' order by lastname ASC">
<SelectParameters>
<asp:ControlParameter ControlID="txtWinnersSearch" Name="Nickname" PropertyName="Text" Type="String"/>
</SelectParameters>
</asp:SqlDataSource>