Questions on UI for WinForms Forum

2 answers

86 views

Problem with selectionstate of a specific filter column

Hi,

i am currently implementing a custom filter dropdown with radgridview, but i get confused with the following problem.

For simplification just imagine i have two columns, Status and Status2.
Status is just a representation of 0 or 1. Status2 is an image representing the status.

If i click the filter symbol inside of the TableFilteringRow my custom dropdown will be opened.
After choosing an option a handler fires and the filter is being applied to the column "Status".
That works as i would expect it.

But if i try that the second time, my custom dropdown shows up, i choose another option,
the handler fires but the filter symbol seems to be still pressed. And that is the reason why the data inside the gridview cannot be filtered because the filter action is not yet finished until i click into another column/row.

See also the attached image for better understanding what i mean.

Here is the code:

Private Sub grdViewPostleitregion_ContextMenuOpening(ByVal sender As System.Object, ByVal e As Telerik.WinControls.UI.ContextMenuOpeningEventArgs) Handles grdViewPostleitregion.ContextMenuOpening

If (e.ContextMenuProvider Is Nothing) Then

e.ContextMenu.Items.Clear()

Dim dtMenu As New RadDropDownMenu

Dim r As RadMenuItem

Dim sepItm As RadMenuSeparatorItem

'No Filter

r = New RadMenuItem

r.Text = "No Filter"

dtMenu.Items.Add(r)

AddHandler r.Click, AddressOf PostRegionNoFilter_Click

'Separator

sepItm = New RadMenuSeparatorItem

e.ContextMenu.Items.Add(sepItm)

'Imagefilter

r = New RadMenuItem

r.Image = My.Resources.Status_0

r.Text = "OK"

dtMenu.Items.Add(r)

AddHandler r.Click, AddressOf PostRegionStatus0_Click

r = New RadMenuItem

r.Image = My.Resources.Status_1

r.Text = "Warning"

dtMenu.Items.Add(r)

AddHandler r.Click, AddressOf PostRegionStatus1_Click

e.ContextMenu = dtMenu

End If

End Sub

Private Sub NoFilter_Click(ByVal sender As Object, ByVal e As System.EventArgs)

With Me.grdViewPostleitregion

.Columns("Status").FilterDescriptor = Nothing

.CurrentColumn = .Columns("Status")

.CurrentRow = .MasterView.TableFilteringRow

End With

End Sub

Private Sub Status0_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Dim Filter As New FilterDescriptor()

Filter.Operator = FilterOperator.IsEqualTo

Filter.Value = 0

Filter.IsFilterEditor = False

With Me.grdViewPostleitregion

.Columns("Status").FilterDescriptor = Nothing

.Columns("Status").FilterDescriptor = Filter

.CurrentColumn = .Columns("Status")

.CurrentRow = .MasterView.TableFilteringRow

.MasterView.TableFilteringRow.Cells(0).IsSelected = True

End With

End Sub

Private Sub Status1_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Dim Filter As New FilterDescriptor()

Filter.Operator = FilterOperator.IsEqualTo

Filter.Value = 1

Filter.IsFilterEditor = False

With Me.grdViewPostleitregion

.Columns("Status").FilterDescriptor = Filter

.CurrentColumn = .Columns("Status")

.CurrentRow = .MasterView.TableFilteringRow

.MasterView.TableFilteringRow.Cells(0).IsSelected = True

End With

End Sub

How can i fix that?

GridView

answered on 28 Sep 2010

1 answer

103 views

DragDropService from a gridview to a treeview

Hi!

i've been trying to drop items on a tree without success.

I've set the tree to AllowDrop and after hours of trying it out I have succeded to drag on the grid using the RadGridViewDragDropService with a bound grid.

How do I get the tree to accept the drop?

thanks
- jorge

GridView

answered on 28 Sep 2010

1 answer

142 views

RadListBoxItem change text color

Hi

I need to change color of text of a RadListBoxItem from the code.
Color is predefined in the applied theme (in the text item and also for mouseover and !mouseover states).
Which property in theme will allow text color to change from the code or which settings should be applied for color to be able to change it programmaticlly?

Thanks,
Vladan

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 28 Sep 2010

2 answers

135 views

MDI List

Hi
I have an issue with am MDI applicaiton in Windows. I have a windows menu with MDIList property set to true. When I click on a document added to the list, it does not activate that document.

I want also to reproduce the context menu (New Horizontal Tab Group and New Vertical Tab Group) in my windows menu. What is the code to create a new horizontal and vertical group from an active window?

Thanks for your help

Philip

Dock

answered on 28 Sep 2010

2 answers

404 views

Controls and INotifyPropertyChanged

Hi,

Most of the Windows Forms controls in Telerik implement the System.ComponentModel.INotifyPropertyChanged interface though I have noticed that it does not seem to fire whenever a property changes value. I have noticed this in RadTextBox (Text property) and in RadDropDownList (SelectedValue property); I have not checked the other controls.

Yes, these controls do have more specific events that fire when their value changes (TextChanged or SelectedValueChanged) but in the case of our project it is simpler to use the INotifyPropertyChanged.PropertyChanged event.

Questions:
1) Is it possible to know which control properties do fire the PropertyChanged event?
2) Are the implementations of INotifyPropertyChanged only designed to work for certain properties?

I cannot remember but I'm pretty sure previous releases used to fire this event and this only occurred with the latest release.

Thank you.

General Discussions

answered on 28 Sep 2010

3 answers

185 views

Issue with Anchors

Hello,

I have a RadGridView control inside a RadPageViewPage along with other editor controls. The grid control is anchored on all sides (left+top+right+bottom) and its AutoSize is set to false. Running the form for the first time displays no problems. However when we open the form designer again the grid control mysteriously changes dimensions which pretty much requires us to keep resizing it every time someone needs to edit the form's layout. This only happens when it is anchored on all sides.

GridView

answered on 28 Sep 2010

2 answers

525 views

e.Row.DataBoundItem is readonly now

I have been using CellValidating event to validate cells data that user enters in a grid. It was important that e.Row.DataBoundItem != null and represent my Entity.
For this reason I have been using
BaseGridView_UserAddedRow event
and BaseGridView_DefaultValuesNeeded

like this

/// <summary>

/// Set DataBoundItem when user is adding new row

/// </summary>

protected override void BaseGridView_DefaultValuesNeeded(object sender, GridViewRowEventArgs e)

{

e.Row.DataBoundItem = new TEntity();

}

/// <summary>

/// Update Grid DataBountItem after saving. If don't do this, ((Entity)DataBoundItem).Id will be 0.

/// </summary>

private void BaseGridView_UserAddedRow(object sender, GridViewRowEventArgs e)

{

e.Row.DataBoundItem = Entity;

}

now in latest build e.Row.DataBoundItem is readonly.
My questions are:
1) how to set DataBoundItem before CellValidating?
2) how to set DataBoundItem after saving data to database in case I save it during BaseGridView_RowValidating event?

GridView

answered on 28 Sep 2010

1 answer

70 views

Is there a moderator in this forum?

I know that my question regarding resources and appointments may be a lame question, but your documentation and demos only appear to cover superficial information. i may look elsewhere for a scheduler control....

Scheduler and Reminder

answered on 28 Sep 2010

2 answers

237 views

SelectedIndexChanging Event?

Is there any way to implement a 'SelectedIndexChanging' event for a RadComboBox?
The reason is that I need to cancel the index changed event sometimes, but I cannot since the changing event is missing in RadComboBox.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 28 Sep 2010

1 answer

94 views

Conditional Load of Child Grid Template

Hi

Suppose I have a Grid with the following columns:

CustomerCode
AccountNumber
AccountDescription
Balances

And suppose I have a Child Grid which contains the following columns

CustomerCode
AccountNumber
Amount
ReferenceNumber

The realtionship between the grids is by AccountNumber

An example of the Main Grid data would be:

123456 12345600 Savings 1000.00
123456 12345601 Fixed 5000.00
123456 12345600 Transactions 2000.00

I am dealing with a large amount of data and so I only what to populate the Child Grid where the AccountTypeDescription has a value of "Transactions" At the moment the Child Grid is loading the transactions 3 times which I don't need. It only needs to populate for the "Transactions" row.

Is it possible to do this?

I am using Telerik WinForms Rad Controls Q2 2009

Thanks

GridView

answered on 28 Sep 2010