Questions on UI for WinForms Forum

3 answers

379 views

Hello,

I have created a custom theme for our application. I have themed the RadGridView and the RadScrollbars. The issue I have is the scrollbars on the grid.do not respect the theme that was created for the scrollbars. The scrollbar theme does not have dark borders around all of the objects, they are light gray. Yet the grid does not have the light borders. Is these something I am missing?

There is a screen shot attached.

Thanks,

Ben

Themes and Visual Style Builder

answered on 02 May 2016

4 answers

402 views

Selecting GroupRows

Hello,

Let me start with what my overall goal is, just in case I'm taking the completely wrong approach to this:
I have multiselect turned on on my RadGridView. I would like to allow a user to quickly select all the ChildRows of a group by just clicking on that specific GroupRow. I would also like to allow them to select multiple groups at the same time by holding shift or ctrl. This could be a combination of ChildRows and GroupRows.

Here's what I've tried doing:
1. Using the SelectionChanged event. When I select a GroupRow, the SelectedRows.Count property of my RadGridView is 0 (ie the IsSelected property of the GroupRow that I just selected is still false). I could use the CurrentRow property and just set all of the ChildRows of the current GroupRow to selected, but if the user holds down shift and selects many GroupRows at once, this will only catch the last one.

2. Using the CurrentRowChanged event. I'm not able to use this for the same reason as above: I can only select the ChildRows of the GroupRow that is last in the selection list.

3. Using the SelectionChanging event. Surprisingly, only a single row exists in e.Rows, despite me selecting multiple GroupRows.

So I'm left with CurrentRowChanging. With this event, I'm given the OldRow and the NewRow, so it is (probably) possible to determine if the user is holding down ctrl or shift, determine whether the user has filtered or sorted the rows, and then manually select each ChildRow under each GroupRow based on this logic, but that just seems a little obscure and unnecessary.

Here is my code (there's nothing to it)... I tried programatically selecting the 2nd group row as well, but the property will not set:

private void RadForm1_Load(object sender, EventArgs e)

{

DataTable dt = new DataTable();

dt.Columns.Add("col1", typeof(string));

dt.Columns.Add("col2", typeof(int));

dt.Rows.Add("group1", 0);

dt.Rows.Add("group1", 1);

dt.Rows.Add("group1", 2);

dt.Rows.Add("group1", 3);

dt.Rows.Add("group2", 0);

dt.Rows.Add("group2", 1);

dt.Rows.Add("group3", 0);

dt.Rows.Add("group3", 1);

dt.Rows.Add("group4", 0);

dt.Rows.Add("group5", 1);

dt.Rows.Add("group6", 0);

dt.Rows.Add("group7", 1);

radGridView1.DataSource = dt;

radGridView1.GroupDescriptors.Add(new Telerik.WinControls.UI.GridGroupByExpression("col1 GROUP BY col1"));

radGridView1.Groups[1].GroupRow.IsSelected = true;

}

Thank you!

GridView

answered on 02 May 2016

1 answer

178 views

RadMenu bar with image

Hello,

Is it possible to put an image on a RadMenu bar, and have it aligned all the way to the right? You would have your standard menus (File, Edit, Help) on the left, and at the other end place a logo image.

Thanks,

George

Menu

answered on 02 May 2016

3 answers

174 views

Mail Merge Labels

Hi,

Is it possible to mail merge labels as you can do in Word? I can't find this feature anywhere on the mail merge documentation.

I did find this feature request but I don't know if this is requesting the feature for Winforms and if the feature has been implemented yet.

Best Regards

Mohammed

RichTextEditor

answered on 02 May 2016

7 answers

557 views

RadPropertyGrid doesn't work in Labview

Hi,

Labview has a .NET Container to host .Net Windows Forms Controls *)

I make a simple Example with 2 .NET Containers for RadPropertyGrid and PropertyGrid .

And assign a new instance of Printdialog of System.Windows.Forms to SelectedObject.

I thought I could replace the PropertyGrid with RadPropertyGrid (more features, modern look), but RadPropertyGrid doesnt work.

What could be the problem?

I attached also the simple Labview 2015 vi (rename PropGrid.vi.gif to PropGrid.vi)

Peter

*) see an complex Example with Datagridview: https://github.com/unipsycho/LabVIEWdotNetDataGrid

PropertyGrid

answered on 29 Apr 2016

6 answers

736 views

How to set a black background and white text

Hi,

I'm trying to get the richtexteditor to display white text on a black background. (That's a requirement for us).

Simply setting the back and forecolors doesn't really work well;

_viewer.BackColor = Color.Black;

_viewer.ForeColor = Color.White;

_viewer.RichTextBoxElement.BackColor = Color.Black;

_viewer.RichTextBoxElement.ForeColor = Color.White;

I have also tried to change the paragraphs, but that still leaves a white paper, with paragraphs with black background.

_viewer.ChangeParagraphBackground(Color.Black);

var documentEditor = new RadDocumentEditor(_viewer.Document);

documentEditor.ChangeForeColor(Color.White);

documentEditor.ChangeParagraphBackground(Color.Black);

_viewer.Document.Selection.Clear();

Any advice on how I can set it up ?

RichTextEditor

answered on 29 Apr 2016

3 answers

146 views

Contextmenu not to show on the mouse header click

Hi,

I have a popup contextmenu that needs to show on the mouse right click on the data cell, BUT SHOULD NOT SHOW when the user clicks or right clicks on the grid header.

Here is my code. How to capture the Grid header click by the mouse?

Private Sub grdInstPymt_MouseDown(sender As Object, e As MouseEventArgs) Handles grdInstPymt.MouseDown
Try
     If e.Button = System.Windows.Forms.MouseButtons.Right Then
         Me.ContextMenuStrip = PopUpMenu
         PopUpMenu.Show()
     End If
Catch ex As Exception
End Try
End Sub

GridView

answered on 29 Apr 2016

1 answer

146 views

Data entry doesn't doesn't update localdb

I've bound a RadBinding Navigator and RadDataEntry to a localdb binding source. At runtime I can browse the db entries but if I make any changes or add a table entry....it isn't saved into the table. Do I have to do individual insert/update sql for each field? For some reason, looking at the documentation I thought the changes would be automatically stored?

DataEntry

answered on 28 Apr 2016

7 answers

374 views

How to remove horizontal border in group view

Hello,

I'd like to remove the horizontal border in a grid within groups (GridViewColumnGroup not GroupDescriptor).

See the attached image, the green (verticals) borders are ok the red (horizontal) borders between the cells in the group are the ones I'd like to remove. (For normal cells and cells of the summary row)

I've tried the normal formatting events, but I found no information if a cell/row is inside a group?

So is this possible at all?

--

Also the GridViewColumnGroupRow.ColumnCollection is marked deprecated, so what is the best way to do this (the ColumnNameCollection dosen't help)?

GridViewColumnGroupRow groupRow = new GridViewColumnGroupRow();

groupRow.Columns.Add(this.kMRadGridView1.Columns["column"]);

Kind regars

GridView

answered on 28 Apr 2016

1 answer

200 views

PivotGrid with custom aggregates group TimeSpan and bounded ChartView

Good day!

I use PivotGrid in conjunction with ChartView.
As one of the columns of data to implement a class for adding a field of type TimeSpan.

This code implements summary of TimeSpan:

/// <summary>

/// Computes the sum of TimeSpan items during pivot grouping

/// </summary>

public class TimeSpanSum : AggregateFunction

{

protected override AggregateValue CreateAggregate(Type dataType)

{

return new TimeSpanAggregateValue();

}

public override string DisplayName

{

get { return PivotGridLocalizationProvider.CurrentProvider.GetLocalizedString(PivotStringId.Sum); }

}

protected override void CloneCore(Cloneable source)

{

//

}

protected override Cloneable CreateInstanceCore()

{

return new TimeSpanSum();

}

public override string ToString()

{

return "Sum";

}

This code adding aggregate description:

dataProvider.AggregateDescriptions.Add(new PropertyAggregateDescription

{

PropertyName = ObjectHelper<PivotGridUnitStateDto>.GetPropertyName(x => x.Duration),

CustomName = "Duration",

AggregateFunction = new TimeSpanSum(),

StringFormatSelector = new TimeSpanStringFormatSelector()

});

But ChartView generate exception on paint any data:

Unable to bring the object type "System.TimeSpan" type "System.IConvertible". (Mscorlib)

------------------------------

Program Location:

в System.Convert.ToDouble(Object value)

в Telerik.WinControls.UI.PivotGridChartDataProvider.UpdateChartCore()

в Telerik.WinControls.UI.PivotGridChartDataProvider.UpdateChartData()

в Telerik.WinControls.UI.PivotGridChartDataProvider.updateTimer_Tick(Object sender, EventArgs e)

How can I fix this error?

PivotGrid and PivotFieldList

answered on 27 Apr 2016