Questions on UI for WinForms Forum

1 answer

146 views

Colour formatting in radgridview for winforms

I have a radgridview which has several columns and each row of data has templates..so on expanding a column we can see a bunch of new expanded rows..

But at the very end I have a few total rows which do not have these expanded rows..I want to set a specific backcolour for each of the columns (cells) based on a bool value. The bool value is a hidden checkbox column in the grid itself.

The scenario is
1. There are two hidden checkbox columns History and Totals which give me bool values
2. If History = True for any row then all the columns will be gray
3. If Total = true for any row then all the columns will be blue
4. If History = False and Total = False then I have separate colour code for each column.
5. History and Total both can never be true for any row.
6. I want to colour only the parent rows and not the template within each parent row.

Please help!

GridView

answered on 22 Aug 2013

1 answer

85 views

Radchart with table

Hello!
Can a Radchart for Winforms have a custom table below the chart, like in the photo I have sent you ?
How can I select this?

Thank you

ChartView

answered on 22 Aug 2013

1 answer

99 views

Popup_MouseClick not firing

lst.Popup.MouseClick += new MouseEventHandler(Popup_MouseClick);

Popup_MouseClick not firing.

Any idea?

DropDownList

answered on 21 Aug 2013

5 answers

265 views

PopupClosed fired when the Popup is still visible

I'm using RadControls for WinForms 2011.3 11.1116
I have a long operation that is fired at SelectedIndexChanged of an RadDropDownList.
The problem is that when the user makes a selection by opening the popup, the SelectedIndexChanged is fired and the popup is still visible while the long operation associated with the event takes place.
In earlier version(of RadControls) i used a RadComboBox and delayed the SelectedIndexChanged to be fired after the PopupClosed event. This fix for my problem it no longer works with the RadDropDownList because the PopupClosed is fired before the SelectedIndexChanged and while the subscriber of the event is running the IsPopupVisible property is false and the popup is actually visible.
Can you help me identify:
- an method i could override or event running after the SelectedIndexChanged is fired
- a property that will indicate me if the Popup is visible or not while processing a subscriber of the SelectedIndexChanged.

Thanks

P.S. I know that moving that operation in a background thread is an alternative solution to my problem, but is not working for me (not because of my skill, the scenario is far more complex than you imagine, and serializing operations via ManualResetEvent is throwing too much complexity in an already complex system)

DropDownList

answered on 21 Aug 2013

2 answers

166 views

Linear DateTimeCategoricalAxis & LineSeries Dock Problem

Hi,

i have a radChartView docking to a Window (in Designer 600x300px) filled with a DataTable, 5 values with price and Date.

linePrice = new DataTable();

linePrice.Columns.Add("Price", typeof(float));

linePrice.Columns.Add("Date", typeof(DateTime));

LineSeries lineSeria = new

LineSeries();

radChartView1.Series.Add(lineSeria);

lineSeria.ShowLabels = true;

lineSeria.LabelFormat = "{0:C}";

lineSeria.ValueMember = "Price";

lineSeria.CategoryMember = "Date";

lineSeria.DataSource = linePrice;

DateTimeCategoricalAxis categoricalAxis = new DateTimeCategoricalAxis();

categoricalAxis.DateTimeComponent = DateTimeComponent.Day;

categoricalAxis.MajorTickInterval = 1;

categoricalAxis.PlotMode = AxisPlotMode.BetweenTicks;

categoricalAxis.LabelFormat = "{0:dd}.{0:MM}.{0:yyyy}";

lineSeria.HorizontalAxis = categoricalAxis;

if i resize the Window greater then 600x300px, everything grows correctly but the line is only visible in the 600x300px field (see Images)

And my second problem/wish: i want the Horizontal Axis linear, like this http://www.telerik.com/help/winforms/chartview-axes-linear.html just with Dates. The Dates in the graph are order dates, so i need to visualise if there are much or less time between them.

thanks in advance

using 2013.2.724.40

ChartView

answered on 20 Aug 2013

1 answer

135 views

ZoomGesture

Is there any way to catch the ZoomGesture in desktop App? i mean not in touch input device

On the other hand, how can i make zoom to specific area of data? without zoomfactor

ChartView

answered on 20 Aug 2013

4 answers

218 views

RadChartView not showing bars when saved to file

I have noticed some strange behavior when I try to save a chart as an image. The x and y axis show up with labels and the correct range but there are no bars.

Private Function GetDummyList() As BindingList(Of RateShockData)

Dim l As New BindingList(Of RateShockData)

l.Add(New RateShockData("+300", "-13.9"))

l.Add(New RateShockData("+200", "-9"))

l.Add(New RateShockData("+100", "-3.9"))

l.Add(New RateShockData("even", "0"))

l.Add(New RateShockData("-100", "-.2"))

l.Add(New RateShockData("-200", "1"))

l.Add(New RateShockData("-300", "2.2"))

Return l

End Function

Private Function BuildChart()

Dim c1 As New RadChartView

Dim bs As New BarSeries

bs.Name = "Market % Change"

bs.ValueMember = "MVPctChange"

bs.CategoryMember = "BPChange"

bs.DataSource = GetDummyList()

c1.Series.Clear()

c1.Series.Add(bs)

Dim bitM As New Bitmap(c1.Width, c1.Height)

c1.DrawToBitmap(bitM, c1.Bounds)

Dim imageFileName As String = Guid.NewGuid.ToString + ".jpg"

bitM.Save(imageFileName, Drawing.Imaging.ImageFormat.Jpeg)

End Function

Private Sub RadButton2_Click(sender As Object, e As EventArgs) Handles RadButton2.Click

BuildChart()

End Sub

Public Class RateShockData

Property BPChange As String

Property MVPctChange As String

Public Sub New(bpc As String, mvpc As String)

BPChange = bpc

MVPctChange = mvpc

End Sub

End Class

The above code is what I used to produce this. I am using version 2012.2.726.40.

I discovered that if I give the chart a palette, this issue goes away.

c1.Area.View.Palette = KnownPalette.Grayscale

ChartView

answered on 20 Aug 2013

3 answers

130 views

RadScheduler: show text to left of daily-view appointments

#1
On the RadScheduler, AddDay appointments are displayed at the top ... above appointments with appointment times. Appointments with times show the times on the very left of the control. AllDay appointments do not show the appointment times ... that space is blank. Do I have access to that area? How can I draw vertical text in that area (above the word "Local")?

#2
In daily view, is there a way to limit the number of AllDay events displayed so that any beyond that number trigger a vertical scroll bar and are scrolled instead of making the appointments section so small as to be unusable?

Scheduler and Reminder

answered on 20 Aug 2013

5 answers

164 views

Persisting Dismissed

Hello,

I can't figure out how to get the RadSchedulerReminder to recognize that Appointments loaded from the database have already been dismissed.

I have a custom Appointment class that inherits from Appointment.
My database table has a Dismissed column.
I set the Dismissed property to the value of the column when I load my appointments from the database. *All* my appointments have Dismissed = True at this point and they all have a start time of close to now.
I set the RadScheduler.DataSource = BindingList(Of CustomAppointment)
I start the RadSchedulerReminder.
I get the reminder screen with every one of my appointments in it even though their Dismissed property is True.
If I dismiss the appointments manually with the Dismiss button, they remain dismissed until I restart the application at which point it ignores the initial value of the property again.

How do I get the RadSchedulerReminder to recognize the existing Dismissed state when it starts up?

Thanks.

Scheduler and Reminder

answered on 20 Aug 2013

2 answers

138 views

Hierarchical Data Programmatically

Hello,

im testing Telerik at the moment and come to an issue. I've searched your whole site for my problem, but i cant find any answer.

I'm trying to bind a hierarchical DataGrid to SQL, but i dont want to use TableAdapters. Instead of it i want to relaize it with a DataReader or something like that.

So my DataGrid loads the data very well, but when i try to make a template/relation nothing happens. There are still just the rows from the Parent, but the child data is missing. I've tried different ways with datasets, to refresh the DataGrid and many more, but nothing works. When i bind it to TableAdapters, it is working well! So here is my code - hope you can help me out...

Private Sub FrmKundenliste_Load(sender As Object, e As EventArgs) Handles MyBase.Load

Dim objconn As New SqlConnection(My.Settings.SQL_V4)

Dim rs As New SqlCommand("", objconn)

Dim dr As DbDataReader

rs.CommandText = "Select * from dbo.ApplicationMain"

Try

objconn.Open()

dr = rs.ExecuteReader

If dr.Read() Then

RadGridView1.DataSource = dr

Dim objconn_detail As New SqlConnection(My.Settings.SQL_V4)

Dim rs_detail As New SqlCommand("", objconn_detail)