[Solved] click on Insert Row does not work

[Peter]

I have a grid view like this:

<telerik:RadGridView
                    x:Name="rgvStaffGrid"
                    ShowInsertRow="True"
                    IsReadOnly="False"
                    IsFilteringAllowed="True"
                    ItemsSource="{Binding StaffViewModels}"
                    SelectedItem="{Binding SelectedStaff, Mode=TwoWay}"
                    AutoGenerateColumns="False"
                    IsSynchronizedWithCurrentItem="True"
                    SelectionUnit="FullRow"
                    SelectionMode="Single"
                    EnableRowVirtualization="True"
                    RowDetailsVisibilityMode="VisibleWhenSelected">
                    <telerik:RadGridView.Columns>
                        <telerik:GridViewDataColumn CellTemplate="{StaticResource LoginAccountCellTemplate}" CellEditTemplate="{StaticResource LoginAccountCellEditTemplate}" Header="Login Account" />
                        <telerik:GridViewDataColumn CellTemplate="{StaticResource InstituteCellTemplate}"
                                                    CellEditTemplate="{StaticResource InstituteCellEditTemplate}" Header="Institute" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.FullName}" Header="Full Name" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.LastName}" Header="Last Name" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.FirstName}" Header="First Name" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.MiddleInitial}" Header="Middle Initial" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.OfficePhone}" Header="Phone" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.OfficeFax}" Header="Fax" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.SmallName}" Header="Small Name" />
                        <telerik:GridViewDataColumn CellTemplate="{StaticResource GenderCellTemplate}"
                                                    CellEditTemplate="{StaticResource GenderCellEditTemplate}" Header="Gender" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.SIN}" Header="SIN #" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.BirthDate}" Header="Birth Date" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.MobilePhone}" Header="Mobile Phone" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.Email}" Header="Email" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.PagerNumber}" Header="Pager #" />
                        <telerik:GridViewDataColumn CellTemplate="{StaticResource TitleCellTemplate}"
                                                    CellEditTemplate="{StaticResource TitleCellEditTemplate}" Header="Title" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.Greeting}" Header="Greeting" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.Inactive}" Header="Inactive" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.PersonnelGroup}" Header="Group Name" />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Path=StaffModel.DateCreated}" Header="Date Created" />
                    </telerik:RadGridView.Columns>
</telerik:RadGridView>

When I click on the "click here to add new item" button (on the first row of the grid view), nothing happened. 
I cannot figure out why the grid view is blocking me from inserting a new row.
Could you help me with this?

[Vlad]

Hi,

Can you insert items normally in this collection (StaffViewModels)? Do you have default (parameterless) constructor for your data object? 

Best wishes,
Vlad
the Telerik team