When Clicking the page arrorow or pg Number, Index Out of Range Error returns

[Eric]

Here is my environment Specs:

1. ASP.NET 2.0
2. Microsoft Windows XP Professional Version 2002 SP2
3. IE V 7
4. Telerik Q2 2008 
5. C#

I have a radgrid that has more than one page of data to show, the data on the page is being filled correctly, and I am limiting it to 20 records per page. I am using both the numbers href links to page through the grid and the arrow, as more data is available to be shown. When I click on the page number or arrow to page through the data in the rad grid I get the following error (also in green where it happens on my code behind snippet down below):

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

My debug triggers the error on the codebehind on this line, in the rgUsers_ItemCommand() when I try to page to the next 20 records:
string sUserName = e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["UserName"].ToString();

Do I need to do a conditional check to make sure that the rgUsers table has a row count greater than zero? Or is there some property I am not using to allow this? My dataset returns 30 users so I expect to see at least 10 users on page 2 of the radgrid.

Code from the aspx Page:

 

 

 

<telerik:RadGrid ID="rgUsers" Skin="Office2007" runat="server" AllowPaging="True"
                        PageSize="20" AllowSorting="True" Width="100%" AutoGenerateColumns="False" OnNeedDataSource="rgUsers_OnNeedDataSource"
                        OnPreRender="rgUsers_PreRender" OnDeleteCommand="rgUsers_DeleteCommand" OnItemCommand="rgUsers_ItemCommand" GridLines="None">
                        <PagerStyle Mode="NextPrevAndNumeric"></PagerStyle>
                        <MasterTableView CommandItemDisplay="None" GridLines="None" DataKeyNames="UserName">
                            <RowIndicatorColumn Visible="False">
                                <HeaderStyle Width="20px" />
                            </RowIndicatorColumn>
                            <ExpandCollapseColumn Visible="False">
                                <HeaderStyle Width="19px" />
                            </ExpandCollapseColumn>
                            <Columns>
                                <telerik:GridEditCommandColumn>
                                </telerik:GridEditCommandColumn>
                                <telerik:GridBoundColumn DataField="UserName" HeaderText="UserName" UniqueName="UserName">
                                </telerik:GridBoundColumn>
                                <telerik:GridBoundColumn DataField="Email" HeaderText="Email" UniqueName="Email">
                                    <HeaderStyle Width="25%" />
                                </telerik:GridBoundColumn>
                                <telerik:GridBoundColumn DataField="LastActivityDate" HeaderText="Last Activity Date"
                                    UniqueName="LastActivityDate">
                                    <HeaderStyle Width="15%" />
                                </telerik:GridBoundColumn>
                                <telerik:GridCheckBoxColumn DataField="IsApproved" HeaderText="Approved" UniqueName="IsApproved">
                                    <HeaderStyle Width="12%" />
                                </telerik:GridCheckBoxColumn>
                                <telerik:GridCheckBoxColumn DataField="IsLockedOut" HeaderText="Locked Out" UniqueName="IsLockedOut">
                                    <HeaderStyle Width="12%" />
                                </telerik:GridCheckBoxColumn>
                                <telerik:GridTemplateColumn UniqueName="TemplateColumn1">
                                    <ItemTemplate>
                                        &nbsp;<asp:LinkButton ID="lnkBtnDelete" runat="server" CausesValidation="false" CommandName="Delete"
                                            ForeColor="#044A7E" Text="Delete" Visible='<%# DelButShowHide((DataBinder.Eval (Container.DataItem, "UserName").ToString())) %>'></asp:LinkButton>
                                    </ItemTemplate>
                                    <HeaderStyle Width="8%" />
                                </telerik:GridTemplateColumn>
                            </Columns>
                            <EditFormSettings>
                                <EditColumn UniqueName="EditCommandColumn1">
                                </EditColumn>
                            </EditFormSettings>
                        </MasterTableView>
                        <HeaderStyle HorizontalAlign="Left" />
                        <FilterMenu EnableTheming="True" Skin="Office2007">
                            <CollapseAnimation Duration="200" Type="OutQuint" />
                        </FilterMenu>
                        <SortingSettings SortedAscToolTip="/Manager/images/arrw_up.gif" SortedDescToolTip="/Manager/images/arrw_d.gif" />
                    </telerik:RadGrid>

 

 

Code from the aspx.cs code behind:

 

 

 

protected void rgUsers_ItemCommand(object source, GridCommandEventArgs e)
    {

        //Errors out on this line :Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
         string sUserName = e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["UserName"].ToString();
        //End Error out on this line

        MembershipUser oUser = Membership.GetUser(sUserName);
        DisplayMessage(string.Empty);

        if (e.CommandName == RadGrid.EditCommandName)//Edit a user
        {
            e.Canceled = true;//interrupts the rgUsers commands so that it does not show inline edit forms

            hdnSubmitType.Value = "UpdateUser";
            PageMode = mode.form;
            RolePrivPanelMode = RolePrivMode.roleChoice; //sets default to role selected
            tbUserName.Enabled = false;
            hydrateEditForm(oUser);
            buildRadTrees(UserInfo.UserIdentityKey.ToString(), oUser.ProviderUserKey.ToString());

            UserInfo.UserIdentityKey.ToString());
            CheckedRadTreesNodes(oUser);
            RolePrivPanelMode = RolePrivMode.roleChoice; //set Roles panel to be shown

        }
    }

 

 

 

 

 

[Eric]

Wow, I must be slow of mind. I figured out my issue.

I just moved the sUserName declaration into the if, and it works.

Please close or delete this thread.