Hi,

I'm using the detailsview web control with template fields and object
datasource. The fields are bound to the data using the Bind() method. I'm
getting an argumentoutofrange exception when the object datasource returns a
arraylist with no elements/items. It is not displaying the
"emptydatatemplate" content.

It displays the "emptydatatemplate" content when I change the template
fields to bound fields (i.e not using the bind method).

Is this a bug or am I missing something here? Any help is appreciated.

I'm using .Net 2.0 Framework, Visual Studio 2005 and C#.

Thanks

Hi,

Thanks for posting!

From your description, I have performed the test. In my sample, whether the
arraylist is empty or not, there is no exception to be thrown.

I'm sorry I don't understand this clearly. I post the demo here. Could you
please modify as your scenario and repost it here. This will make me
understand the issue very well and repro the problem. I appreciate your
understanding!

I'm looking forward your reply.

Regards,

Yuan Ren [MSFT]
Microsoft Online Support

The following is the page content and exception stacktrace. It should give
you the required info. Please let me know if you need any other info.

..aspx page content:
------------------------
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False"
        DataSourceID="ObjectDataSource1"
OnItemInserted="DetailsView1_ItemInserted"
        OnModeChanging="DetailsView1_ModeChanging"
OnItemUpdated="DetailsView1_ItemUpdated" DataKeyNames="CodeID"
SkinID="DetailsViewSkin" OnItemCreated="DetailsView1_ItemCreated">
    <Fields>
            <asp:TemplateField HeaderText="Code Group"
AccessibleHeaderText="Code Group (Required)">
                <EditItemTemplate>
                    <asp:RequiredFieldValidator ID="rfvCodeGroup"
runat="server" ControlToValidate="txtCodeGroup"
                        Display="None" EnableClientScript="False"
ErrorMessage="Code Group cannot be empty"></asp:RequiredFieldValidator>
                    <asp:TextBox ID="txtCodeGroup" runat="server" Text='<%#
Bind("CodeGroup") %>' CssClass="txtbox_uc_required" Columns="30"
MaxLength="30"></asp:TextBox>
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:CommandField ShowInsertButton="True"
AccessibleHeaderText="Click the links to Insert or Update or Cancel"
ButtonType="Button" InsertText="Save" UpdateText="Save" >
                <ControlStyle CssClass="btn" />
            </asp:CommandField>
        </Fields>
        <EmptyDataTemplate>
            <table cellpadding="1" cellspacing="1" border="0"
style="border:solid 1px #c0c0c0;background-color:#ffffc0;">
                <tr><td><img src="Images/attention.gif" alt="Attention"
/></td>
                <td align="left" colspan="2"
style="height:20px;color:red;"><b>Page contains no data.</b></td></tr>
             </table>
        </EmptyDataTemplate>
</asp:DetailsView>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
InsertMethod="InsertCode"
SelectMethod="GetCode" TypeName="BusinessLogicLayer.AppCode"
UpdateMethod="UpdateCode">
    <UpdateParameters>
        <asp:Parameter Name="CodeID" Type="Int32" />
        <asp:Parameter Name="CodeGroup" Type="String" />
    </UpdateParameters>
    <SelectParameters>
        <asp:QueryStringParameter Name="CodeID" QueryStringField="id" Type="Int32"
/>
    </SelectParameters>
    <InsertParameters>
        <asp:Parameter Name="CodeGroup" Type="String" />
    </InsertParameters>
</asp:ObjectDataSource>

Stack Trace:
--------------
[ArgumentOutOfRangeException: Specified argument was out of the range of
valid values.
Parameter name: index]
   System.Web.UI.ControlCollection.get_Item(Int32 index) +2057582
   System.Web.UI.WebControls.TableCellCollection.get_Item(Int32 index) +24
   System.Web.UI.WebControls.DetailsView.ExtractRowValues(IOrderedDictionary
fieldValues, Boolean includeReadOnlyFields, Boolean includeKeys) +345
   System.Web.UI.WebControls.DetailsView.PerformDataBinding(IEnumerable
data) +86

System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +111
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments,
DataSourceViewSelectCallback callback) +29
   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
   System.Web.UI.WebControls.DetailsView.DataBind() +4
   System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
   System.Web.UI.WebControls.DetailsView.EnsureDataBound() +181
   System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls()
+69
   System.Web.UI.Control.EnsureChildControls() +87
   System.Web.UI.Control.PreRenderRecursiveInternal() +41
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360


""Yuan Ren[MSFT]"" wrote:

Show quoteHide quote

The default mode of the detailsview is set to "edit" mode. It looks like this
is causing the problem. The error does occur when the default mode is set to
"readonly" mode and the arraylist is empty.

I would like to set the detailsview default mode depending on the arraylist.
How do I do this? Should I use the "selected" event of the datasource?

Thanks

""Yuan Ren[MSFT]"" wrote:

Show quoteHide quote

Sorry. The error does NOT occur when the arraylist is empty and defaultmode
is readonly.

""Yuan Ren[MSFT]"" wrote:

Show quoteHide quote

Hi,

I am still doing some research for the current issue. I'll reply you ASAP
when I get some result. Thanks for your patience!

Regards,

Yuan Ren [MSFT]
Microsoft Online Support

Hi,

Thanks for your patience!

I have performed the test. In my opinion, the current issue is by design.
If you switch to the bound field, the issue is handled at the binding time.
However, if you change to template field, you have to capture the exception
manually since the binding is different. So, I suggest you capture the
exception manually and perform the related manipulation.

Thanks for your understanding!

Regards,

Yuan Ren [MSFT]
Microsoft Online Support

Which event should I use to catch this exception? Should I use the
detailsview events or the objectdatasource events?

Would you please give me some sample? I tried using the detailsview
databinding event but could not figure out how to catch the exception. If you
look at the stacktrace, the exception was thrown from the System.Web.UI...
classes.

Thanks
MT


""Yuan Ren[MSFT]"" wrote:

Show quoteHide quote

Hi MT,

Thanks for your patience!

I'm sorry that I have performed a mismatch sample from the current issue.
In your code, I find you bind the "CodeGroup" to a textbox control. So,
could you please let me know the type of the "CodeGroup"? I just bind the
ArrayList to the DetailViews control directly. My sample is very simple
like below:
public class ObjectDataSourceClass
{
    public ArrayList getCollection()
    {
        ArrayList ary = new ArrayList(4);
        ary.Add("Tom");
       // do more work
        return ary;
    }
}

Based on my experience, the type of the "CodeGroup" is not the ArrayList.
If my idea is correct, I think the current issue is not caused by the
ArrayList. From the error message, I think the index is zero and there is
no index for the ArrayList actually. I understand my explanation is not
very exactly. So, could you please make a simple demo and send it to me.
This will help me to understand your issue very clearly. Also, I can
perform some related researching. I understand this will bring some
inconvenience to you. However, it is very important to me.

I'm really sorry for inconvenience. I hope you will forgive me. My alias is
v-y***@online.microsoft.com (remove .online). Please send the demo as
zipped to me directly. I appreciate your understanding!

I'm looking forward your reply.

Regards,

Yuan Ren [MSFT]
Microsoft Online Community Support
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