Forms Data Controls :: Gridview Updating - Could Not Find Control 'tbDescriptiontext' In ControlParameter 'descriptiontext'?
Sep 21, 2010
I have this code:
<asp:GridView ShowFooter="true" DataSourceID="odsRooms" Width="700" DataKeyNames="id,locationid" ID="gvRooms" GridLines="None" PageSize="10" runat="server" AllowSorting="true" AllowPaging="True" CellSpacing="4" AutoGenerateColumns="False" >
<Columns>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom" >
<ItemTemplate>
<%# Eval("roomname")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbRoomname" MaxLength="20" Text='<%# Eval("roomname")%>' runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom">
<ItemTemplate>
<%# Eval("sqmeters")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbSqmeters" MaxLength="6" Width="60" Text='<%# Eval("sqmeters")%>' runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" >
<ItemTemplate>
<%# Eval("persreception")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbPersreception" MaxLength="6" Width="60" Text='<%# Eval("persreception")%>' runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom" >
<ItemTemplate>
<%# Eval("persdiner")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbPersdiner" Text='<%# Eval("persdiner")%>' MaxLength="6" Width="60" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom" >
<ItemTemplate>
<%# Eval("persparty")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbPersparty" Text='<%# Eval("persparty")%>' MaxLength="6" Width="60" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom" >
<ItemTemplate>
<%# Eval("descriptiontext")%>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="tbDescriptiontext" Text='<%# Eval("descriptiontext")%>' TextMode="MultiLine" Rows="2" Columns="28" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowDeleteButton="true" DeleteText="Delete" ShowEditButton="true" EditText="Edit" CancelText="Cancel" />
</Columns>
</asp:GridView>
<asp:ObjectDataSource ID="odsRooms" InsertMethod="InsertRoom" DeleteMethod="DeleteRoom" UpdateMethod="UpdateRoom" runat="server" SelectMethod="GetLocationRoomsPagedSorted" SelectCountMethod="GetLocationRoomsCount" SortParameterName="sortExpression"
TypeName="locationsBLL" EnablePaging="true">
<DeleteParameters>
<asp:Parameter Name="id" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:ControlParameter ControlID="tbRoomname" PropertyName="Text" Name="roomname" Type="String" />
<asp:ControlParameter ControlID="tbSqmeters" PropertyName="Text" Name="sqmeters" Type="String" />
<asp:ControlParameter ControlID="tbPersreception" PropertyName="Text" Name="persreception" Type="String" />
<asp:ControlParameter ControlID="tbPersdiner" PropertyName="Text" Name="persdiner" Type="String" />
<asp:ControlParameter ControlID="tbPersparty" PropertyName="Text" Name="persparty" Type="String" />
<asp:ControlParameter ControlID="tbDescriptiontext" PropertyName="Text" Name="descriptiontext" Type="String" />
<asp:Parameter Name="id" Type="Int32" />
</UpdateParameters>
</asp:ObjectDataSource>
And get this error when I click 'Edit' and then 'Update':
Server Error in '/' Application. Could not find control 'tbDescriptiontext' in ControlParameter 'descriptiontext'.Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Could not find control 'tbDescriptiontext' in ControlParameter 'descriptiontext'.
Source Error:
[Code]....
Stack Trace:
[Code]....
[InvalidOperationException: Could not find control 'tbDescriptiontext' in ControlParameter 'descriptiontext'.]
System.Web.UI.WebControls.ControlParameter.Evaluate(HttpContext context, Control control) +2961386
System.Web.UI.WebControls.Parameter.UpdateValue(HttpContext context, Control control) +152
System.Web.UI.WebControls.ParameterCollection.UpdateValues(HttpContext context, Control control) +113
System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) +47
System.Web.UI.WebControls.ObjectDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues) +1204
System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback) +3636597
System.Web.UI.WebControls.GridView.HandleUpdate(GridViewRow row, Int32 rowIndex, Boolean causesValidation) +1336
System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +641
System.Web.UI.WebControls.GridViewRow.OnBubbleEvent(Object source, EventArgs e) +164
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +52
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3691
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
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Server Error in '/' Application.
Object reference not set to an instance of an object.An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
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Line 134: GridViewRow row = (sender as Button).NamingContainer as GridViewRow;
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