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GridViewLookUpColumn Custom Objects

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GridView
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Paul Gallen
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Paul Gallen asked on 16 Dec 2008, 05:38 PM
HI

I have custom objects of type phone and each phone has a phonetype example Phone.PhoneType.Name="Business"

I have a grid which is bound to a generic list of Phone. One of the columns in the grid is a GridViewLookupColumn named  phonetype (ie. Business, Mobile, Fax etc..)
On the init of my app I assign the PhoneTypes to the data source

Me

 

.PhoneTypeBindingSource.DataSource = CMXApplication.LookUps.PhoneTypes

 

 

CType(Me.PhonesRadGridView.Columns("PhoneType"), Telerik.WinControls.UI.GridViewLookUpColumn).DataSource = Me.PhoneTypeBindingSource.DataSource

Because of the nature of the custom objects I intercept the Cellformatting event, to display the name of the phone type

 

 

Private Sub PhonesRadGridView_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles PhonesRadGridView.CellFormatting

 

 

If e.CellElement.RowIndex >= 0 Then

 

 

 

 

 

If e.CellElement.ColumnIndex = 1 Then

 

 

 

 

e.CellElement.Text =

CType(PhonesBindingSource(e.CellElement.RowIndex), FTS.CMX.CMXModel.Phone).PhoneType.Name

 

 

End If

 

 

 

 

 

End If

 

 

 

 

 

End Sub

so far so good. When I edit the grid row I select a different phonetype in my GridViewLookUpColumn (PhoneType). I need to assign  a phonetype from the  GridViewLookUpColumn  to my phone. What I think I need to do is this, capture the CellEndEdit value from the GridViewLookUpColumn and assign a phonetype to my phone.

When I query the GridViewLookUpColumn  it is not the selected value from my grid

Can you give me pointers on how to achieve the desired results?

 

 

Private Sub PhonesRadGridView_CellEndEdit(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles PhonesRadGridView.CellEndEdit

 

 

Dim Phone As FTS.CMX.CMXModel.Phone = ContactProxy.Contact.Phones(PhonesRadGridView.CurrentRow.ViewInfo.CurrentIndex)

 

 

If PhonesRadGridView.CurrentRow.Cells(0).Value = String.Empty Then

 

 

 

 

 

 

If Phone.EntityState = EntityState.Added Then

 

 

 

 

 

PhonesRadGridView.Rows.RemoveAt(ContactProxy.Contact.Phones.Count - 1)

ContactProxy.Contact.Phones.Remove(Phone)

 

End If

 

 

 

 

 

 

Else

 

 

 

 

 

 

If e.ColumnIndex = 1 Then 'assign the phone type to the phone

 

 

 

 

 

 

'CType(Me.PhonesRadGridView.CurrentCell, Telerik.WinControls.UI.GridComboBoxCellElement).Text

 

Debug.WriteLine(

CType(Me.PhonesRadGridView.CurrentCell, Telerik.WinControls.UI.GridComboBoxCellElement).Value)

 

 

 

End If

 

 

 

 

 

 

End If

 

 

 

 

 

 

End Sub

 

 

 

 

Thanks P

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Paul Gallen
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answered on 17 Dec 2008, 05:04 PM
Hi Guys


Any movement on this


Thanks

P
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Nick
Telerik team
answered on 18 Dec 2008, 04:50 PM
Hi Paul Gallen,

Thank you for contacting us.

Please see the sample code below:

Dim t As New DataTable() 
t.Columns.Add("some column"GetType(String)) 
t.Columns.Add("phone column"GetType(String)) 
t.Rows.Add("some text""Mobile"
t.Rows.Add("some text""Business"
t.Rows.Add("some text""Business"
t.Rows.Add("some text""Fax"
Me.radGridView1.MasterGridViewTemplate.AutoGenerateColumns = False 
radGridView1.Columns.Add(New GridViewTextBoxColumn("some column")) 
Dim c As New GridViewLookUpColumn("phone column"
c.DataSource = New String() {"Mobile""Business""Fax"
c.FieldName = "phone column" 
radGridView1.Columns.Add(c) 
Me.radGridView1.DataSource = t 
Me.radGridView1.MasterGridViewTemplate.EnableFiltering = True 

This example will soon become available in our documentation. When you edit the values in the comboboxes they are saved in your database (the t DataSet in the case above).

Do not hesitate to write me back if you have more questions.
 

Best wishes,
Nick
the Telerik team

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Paul Gallen
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answered on 18 Dec 2008, 05:26 PM
Hi Nick,

Thanks for getting back to me, I have another thread running where I am having trouble with grids generally. I think it is because the grid is bound to custom objects in a generic list . I am investingating at the moment and I will get back to you with my findings

Best

P
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Nick
Telerik team
answered on 19 Dec 2008, 03:43 PM
Hi Paul Gallen,

Thank you. Please make sure that you access the RadGridView only from the thread where it was created.

Greetings,
Nick
the Telerik team

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