Hi,
I have an british ASP.Net 2.0 application which is doing what (should) be
very simple. But I am having issues.
On my page I have a GridView as follows (some tags excluded for easy reading):
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="ObjectDataSource1" DataKeyNames="Id"
OnRowUpdated="GridView1_RowUpdated">
<Columns>
<asp:BoundField DataField="CreateDate" HeaderText="Create Date"
SortExpression="CreateDate"
DataFormatString="{0:d}" ApplyFormatInEditMode="True"
ReadOnly="True" HtmlEncode="False">
<HeaderStyle Wrap="False" />
</asp:BoundField>
<asp:CommandField ButtonType="Image"
CancelImageUrl="~/images/manager/false.gif"
EditImageUrl="~/images/manager/edit.gif"
ShowEditButton="True" UpdateImageUrl="~/images/manager/true.gif" />
</Columns>
</asp:GridView>
This is bound to an ObjectDataSource defined as follows:
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
SelectMethod="GetCampaigns"
TypeName="B3.Mailer.BusinessEntities.Campaign"
DataObjectTypeName="B3.Mailer.BusinessEntities.Cam paign"
InsertMethod="Insert" UpdateMethod="Update">
<SelectParameters>
<asp:SessionParameter Name="clientId" SessionField="ClientId"
Type="Int32" />
</SelectParameters>
</asp:ObjectDataSource>
The update method is defined as:
public static void Update(Campaign campaign)
{
}
However, when I edit a row in the GridView and press the update button I get
the following error:
[InvalidOperationException: Cannot convert value of parameter 'CreateDate'
from 'System.String' to 'System.DateTime']
System.Web.UI.WebControls.ObjectDataSourceView.Con vertType(Object value,
Type type, String paramName) +485
System.Web.UI.WebControls.ObjectDataSourceView.Bui ldObjectValue(Object
value, Type destinationType, String paramName) +217
System.Web.UI.WebControls.ObjectDataSourceView.Bui ldDataObject(Type
dataObjectType, IDictionary inputParameters) +548
System.Web.UI.WebControls.ObjectDataSourceView.Exe cuteUpdate(IDictionary
keys, IDictionary values, IDictionary oldValues) +1520
System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values,
IDictionary oldValues, DataSourceViewOperationCallback callback) +179
System.Web.UI.WebControls.GridView.HandleUpdate(Gr idViewRow row, Int32
rowIndex, Boolean causesValidation) +1137
System.Web.UI.WebControls.GridView.HandleEvent(Eve ntArgs e, Boolean
causesValidation, String validationGroup) +835
System.Web.UI.WebControls.GridView.OnBubbleEvent(O bject source, EventArgs
e) +162
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +56
System.Web.UI.WebControls.GridViewRow.OnBubbleEven t(Object source,
EventArgs e) +118
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +56
System.Web.UI.WebControls.ImageButton.OnCommand(Co mmandEventArgs e) +106
System.Web.UI.WebControls.ImageButton.RaisePostBac kEvent(String
eventArgument) +200
System.Web.UI.WebControls.ImageButton.System.Web.U I.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +31
System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler
sourceControl, String eventArgument) +32
System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData) +72
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3840
This appears to be caused by the date being in UK format (dd/mm/yyyy - which
is correct for this application) as dates which could also be in US format
(i.e. 12/12/2005) do not throw this error.
Both my browser and development machine are set to en-gb but there is no
Culture attribute set on the @Page tags on the page.
Is this a bug in the ObjectDataSource not conforming to globalization or am
I missing somthing?
Any help you can give will be much appreciated. Thanks in advance for your
help.
Regards,
Anne.
