Questions on UI for WinForms Forum

4 answers

255 views

Define different column types in single column

Is it possible to define different GridView column type based on column value at row loading event at runtime?
I like to be able to define calendar, combo, or text in the same column.

For example, I have following records:
Col1        Col2            Col3
Daily        10/1/2010    Check my email
Weekly    Monday        Check to see if weekly backup worked
Monthly    1                  Check to see if monthly order came thru

I like to be able to change cell column type on Col2 based on value in Col1.
So, in this case,
Col2 on the 1st row has GridViewDataTimeColumn where a user can select date from calendar.
Col2 on the 2nd row has combo box with monday, tuesday, wednesday, etc...
Col3 on the 3rd row has free text where a user can enter numerical number 1 thru 31

So, Col1 is defined as combo box with Daily, Weekly, Monthly, etc...

Is this possible to do this using your radgridview?

Thanks.

Harry Idachi

GridView

answered on 05 Oct 2010

3 answers

272 views

RadGrid Summary Row FormatString

Hi Guys,

The column format is set as {0:c},

From the designer, I add a summary row, and then a GridViewSummaryItem. When I set the FormatString property of this summary item for that particular column as {0,c}, I am getting an exception.

The actual DB column is a MySQL decimal (15,2) type column.

I can get around this by using the ViewCellFormattingEvent programmatically. But just wanted to know whether I am doing something wrong, or is this a bug.

Thanks.

GridView

answered on 05 Oct 2010

0 answers

95 views

Add GridViewComboBoxColumn to exisiting column

Please, remove this post. I moved it to Gridview forum. This was wrong place. Sorry!

Hi!
I am trying to implement GridViewComboBoxColumn on gridview for existing"DEPARTMENT_ID"
colum.
I tried below and it works fine, but it is adding another column on the gridview instead of replacing existing "DEPARTMENT_ID" column.
1. What should I change?
2. What property will remove a scroll bar on GridViewComboBoxColumn?

With Me.rgvEmployee

.Columns("EMP_ID").HeaderText = "EMP ID"

Dim deptComboboxColumn As GridViewComboBoxColumn = New GridViewComboBoxColumn

With deptComboboxColumn

.UniqueName = "DeptColumn"

.HeaderText = "Dept"

.DataSource = From q In db.MST_DEPARTMENT _

Select q.DEPARTMENT_ID, q.DEPARTMENT_NM

.ValueMember = "DEPARTMENT_ID"

.DisplayMember = "DEPARTMENT_NM"

.FieldName = "DEPARTMENT_ID"

.Width = 200

End With

Me.rgvEmployee.Columns.Add(deptComboboxColumn)

End With

ComboBox and ListBox (obsolete as of Q2 2010)

asked on 05 Oct 2010

1 answer

308 views

Tristate CheckBox column

Hi,

I want to create a checkbox column in my grid which will be databound to a nullable boolean property in the data source. How do I go about doing this? I don't see an IsThreeState property on GridViewCheckBoxColumn or RadCheckBoxEditor.

Thanks!

GridView

answered on 04 Oct 2010

8 answers

391 views

Sub-totals and Grand-Total

Hi have been looking around for quite some time now and I cannot find exactly what I want.

I have a GridView (Q2 2010), I group some rows programmatically.

Now I need to display sub-totals and the grand-total for 3 columns. I have only been able to display the 3 sub-totals on different lines.

What is the the correct way of adding sub-totals (based on grouping) for the 3 columns on the same line?

How to add the Grand-total line for those 3 columns?

All this is set programmatically.

GridView

answered on 04 Oct 2010

1 answer

99 views

Install a lastest version

Hi:
I'm developing a application with a version of rad forms telerik from 2009, but I want to install a new version.
My question is: The new version is compatible with all controls of the old version?

Thanks.

General Discussions

answered on 04 Oct 2010

2 answers

165 views

Problem with comb box column if data source is List<T>, 2010 Q2 SP2.

Hi

I set (radGridView1.Columns[0] as GridViewComboBoxColumn).DataSource on List<MyObject>.
During moving focus to another cell (after selecting something from combo box) I get exception.
DisplayMemeber and ValueMember are null – but I think it is ok for this case.

Stack trace:

FormatException: Input string was not in a correct format.

at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)

at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)

at System.String.System.IConvertible.ToInt32(IFormatProvider provider)

at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)

at System.ComponentModel.BaseNumberConverter.ConvertTo(ITypeDescriptorContext context, CultureInfo culture, Object value, Type destinationType)

at Telerik.WinControls.UI.RadDataConverter.ParseCore(Object value, Type targetType, Type sourceType, TypeConverter dataTypeConverter, IDataConversionInfoProvider dataColumn, Boolean checkFormattedNullValue)

at Telerik.WinControls.UI.RadDataConverter.Parse(IDataConversionInfoProvider converstionInfoProvider, Object value)

at Telerik.WinControls.UI.GridDataCellElement.set_Value(Object value)

at Telerik.WinControls.UI.GridViewEditManager.EndEditCore(Boolean validate, Boolean cancel)

at Telerik.WinControls.UI.GridViewEditManager.CloseEditor()

at Telerik.WinControls.UI.GridViewEditManager.OnPositionChanging(PositionChangingEventArgs args)

at Telerik.WinControls.UI.GridViewEditManager.Telerik.WinControls.UI.IGridViewEventListener.PreProcessEvent(GridViewEvent eventData)

at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode)

at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(GridViewEvent gridEvent)

at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent)

at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()

at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent)

at Telerik.WinControls.UI.GridViewSynchronizationService.RaiseCurrentChanged(GridViewTemplate template, GridViewRowInfo row, GridViewColumn column, Boolean user)

at Telerik.WinControls.UI.BaseGridNavigator.SelectCore(GridViewRowInfo row, GridViewColumn column)

at Telerik.WinControls.UI.BaseGridNavigator.SelectNextColumn()

at Telerik.WinControls.UI.GridRowBehavior.ProcessTabKey(KeyEventArgs keys)

at Telerik.WinControls.UI.GridNewRowBehavior.ProcessTabKey(KeyEventArgs keys)

at Telerik.WinControls.UI.GridRowBehavior.ProcessKey(KeyEventArgs keys)

at Telerik.WinControls.UI.BaseGridBehavior.ProcessKey(KeyEventArgs keys)

at Telerik.WinControls.UI.RadGridView.ProcessDialogKey(Keys keyData)

at System.Windows.Forms.Control.PreProcessMessage(Message& msg)

at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)

at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)

I do not have this problem if I set DataSource to List<string>.

How can I set List< MyObject> as DataSource for comb box column?

Regards

GridView

answered on 04 Oct 2010

6 answers

182 views

Problems since upgrading to SP2

hi, below is a list of errors I have since upgrading to SP2.

1) 'Error 4 function 'ProcessTabKey' cannot be declared 'Overrides' because it does not override a function in a base class. '

Class

CustomGridBehavior

Inherits BaseGridBehavior

Protected Overloads Overrides Function ProcessTabKey(ByVal keys As System.Windows.Forms.KeyEventArgs) As Boolean

If Me.CheckIfLast() Then

Me.GridControl.EndEdit()

Me.GridControl.Rows.AddNew()

Me.GridControl.Rows(Me.GridControl.Rows.Count - 1).IsCurrent = True

Me.GridControl.Columns(1).IsCurrent = True

Me.GridControl.Focus()

Me.GridControl.BeginEdit()

Return True

Else

Me.GridControl.Focus()

Me.GridControl.EndEdit()

TryCast(GridControl.DataSource, BindingSource).EndEdit()

Return MyBase.ProcessTabKey(keys)

End If

End Function

2) 'Error 5 'ProcessTabKey' is not a member of 'Telerik.WinControls.UI.BaseGridBehavior'. '

Same code as above

3) 'Error 6 Value of type 'Debitask.CustomRadGridView' cannot be converted to 'Telerik.WinControls.UI.RadGridViewElement'.'

Class

CustomRadGridView

Inherits RadGridView

Public Sub New()

Dim gridBehavior As New CustomGridBehavior()

gridBehavior.Initialize(

Me) '<-- This line.

Me.GridBehavior = gridBehavior

End Sub

4) 'Error 33 Property 'Index' is 'ReadOnly'.'

newColumn =

New GridViewCheckBoxColumn

With newColumn

.BestFit()

.HeaderText =

"Selected"

.ReadOnly = False

.Index = 0

End With

5) Error 38 'CellElement' is not a member of 'Telerik.WinControls.UI.GridViewCellInfo'.

rowCurrent.Cells(

"image").CellElement.Image = Debitask.My.Resources.delete16

6) Error 117 Event 'GroupSumaryEvaluate' cannot be found'
private Sub grdAccessGroups_GroupSumaryEvaluate(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GroupSummaryEvaluationEventArgs) Handles grdAccessGroups.GroupSumaryEvaluate

GridView

answered on 04 Oct 2010

2 answers

172 views

Am I going mad? MasterGridViewTemplate.ChildGridViewTemplates missing

Yeah that wasn't the best subject line ever.

OK so I've added a gredview to the form. Now I want to setup some hierarchy. Using the help as a guideline I'm looking for the MasterGridViewTemplate property in the properties - can't find it, so going to the property builder for the grid I look in there for the ChildGridViewTemplates, no luck with that either.

I'm using the 2010 Q2 SP1 version of WinForms....

Any ideas what is going on?

Regards,

Jon

GridView

answered on 04 Oct 2010

2 answers

85 views

UPDATE MY PROJECT

Hi:
I have a project developed with Rad Controls For WinForms Q2 2009 and I installed a lastest the version Q2 2010.
After, I open the Project Update Utility and update my project, however I have many errors in the designer.

Help me please!
Thanks

General Discussions

answered on 04 Oct 2010