Questions on UI for WinForms Forum

3 answers

93 views

Read-only cell (simulation) and the paste functionnality

Hi, I am using a RadGridView in which some of the cells might be read-only depending on the values of the data in other columns.
To simulate the read-only behavior, I use «CellBeginEdit» event has recommended in some threads of this forum.
My code looks like this:

private void radGridView_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
e.Cancel = !IsCellUpdatable();
}

The «IsCellUpdatable» function seen above returns true or false depending on if the cell has to be modified.
Up to that part, everything works properly.

The problem I encounter is that a user can still paste some data into the cell using the keyboard shortcut «Ctrl-V». The pasting command does not trigger the CellBeginEdit event, so the data is entered in the cell. Thus the read-only behavior can be bypassed. So, I need to prevent the pasting from somewhere else.

I have tried using the grid's KeyDown event but it is not fired. I then tried to override the grid's behavior and the ProcessKey event to catch the «Ctrl-V» command but then I do not have access to my form's «IsCellUpdatable» method (it is not static and cannot be).

Any other suggestions to trap and prevent the paste command?

Thanks for your help

GridView

answered on 15 Apr 2015

4 answers

243 views

Charts being cropped left and right, do not display properly

Hi, I have a problem with charts not being displayed properly and being cropped to the left and right edges as the attached picture suggests. The code I use to construct the chart is as follows:

this.radChart.View.Margin = new Padding(15);

ChartTooltipController toolTipController = new ChartTooltipController();

toolTipController.DataPointTooltipTextNeeded += toolTipController_DataPointTooltipTextNeeded;

this.radChart.Controllers.Add(toolTipController);

this.radChart.ShowToolTip = true;

this.radChart.ShowPanZoom = true;

LineSeries dailySeries = new LineSeries();

dailySeries.BorderColor = Color.DarkBlue;

dailySeries.BorderWidth = 1;

dailySeries.PointSize = new SizeF(5, 5);

dailySeries.ShowLabels = true;

foreach (var r in (from q in DailyData orderby q.FIXING_DATE select q))

{

dailySeries.DataPoints.Add(new CategoricalDataPoint(r.FIXING, r.FIXING_DATE) { Label = "old" });

}

DateTimeCategoricalAxis categoricalAxis = new DateTimeCategoricalAxis();

categoricalAxis.DateTimeComponent = DateTimeComponent.Date;

categoricalAxis.MajorTickInterval = 21;

categoricalAxis.PlotMode = AxisPlotMode.OnTicks;

categoricalAxis.LabelFitMode = AxisLabelFitMode.MultiLine;

categoricalAxis.LabelFormat = "{0:MMM-yy}";

CartesianArea area = this.radChart.GetArea<CartesianArea>();

area.ShowGrid = true;

CartesianGrid grid = area.GetGrid<CartesianGrid>();

grid.DrawHorizontalFills = true;

grid.BorderDashStyle = System.Drawing.Drawing2D.DashStyle.DashDot;

//First assign the axis to the VerticalAxis property and then add the series to the chart

dailySeries.HorizontalAxis = categoricalAxis;

this.radChart.Series.Add(dailySeries);

Can you pleaase suggest a solution to this problem?

Regards,

George

ChartView

answered on 14 Apr 2015

3 answers

468 views

Multiple device development

Hi,

I have a general question about what is the best/recomended approach for working on Telrik projects across multiple machines.

For example, I'm developing an application on my main development machine for a client and when I attend site to deploy (and possible modify) the application, I would typically copy the Visual Studio project to my laptop and then edit and deploy the project from there.

I realise to do so on my laptop, I would need to install the Telerik client libarires (which I have), but this approach of copying the solution to my laptop and trying to open/edit there, is not working too well (at all)

What is the approach I should be taking to manage this particular use case?

Thanks,
Damian

General Discussions

answered on 14 Apr 2015

3 answers

198 views

Summary row on _true_ bottom of grid?

When I add a summary row to my grid it works as expected: A summary row is added as a last (visible) line in the grid which remains visible when lines are added and one scrolls the grid.

01.Private Sub AddRadGridView1Summary()

02. Me.RadGridView1.SummaryRowsBottom.Clear()

03. Dim betaald As GridViewSummaryItem = New GridViewSummaryItem("Betaald", "{0:F2}", GridAggregateFunction.Sum)

04.

05. Dim summaryRowItem As New GridViewSummaryRowItem()

06. summaryRowItem.Add(betaald)

07.

08. Me.RadGridView1.SummaryRowsBottom.Add(summaryRowItem)

09. Me.RadGridView1.MasterView.SummaryRows(0).PinPosition = PinnedRowPosition.Bottom

10. End Sub

However I would like to show the summary line at the "true bottom" of the grid, even when the grid contains zero (or just a few) lines as shown in the attached.

How could I achieve this?

Kind regards,

Raoul

GridView

answered on 10 Apr 2015

2 answers

133 views

How to draw on the chartview

I'm trying to have a range of my chart. The range as a slope of y = ax+b, plus a tolerance for the width of the band.

I know that I can draw a line with 2 points, but I'm trying to achieve something like the picture attached knowing that the user will be able to change the slope and tolerance via two spineditor.

Thanks

ChartView

answered on 10 Apr 2015

5 answers

173 views

How did textboxes bind to a selected row of a RadGridView in the provided example named "BugTracker"?

Hello,

In the provided sample project named BugsTracker, how did the textboxes in the detailPageView bind to a selected row of that bugsGrid?

I mean, there will be corresponding detail message shown in the textboxes when I select one row of bugsGrid.

How was that done?I read the codes but I couldn't find out the entry.

thanks in advance.

GridView

answered on 10 Apr 2015

1 answer

61 views

Last created windows is not aktiv

Hello,

we have a problem with option AutoDetectMdiChildren. The last created windows is not the active window, but the first

We can not use the radDock.ActiveDocument property, because the forms are not a DockWindow, it's a normal System.Windows.Forms.Form.

It is posible to set the last window as aktive window?

namespace TelerikWinFormsApp1

{

public partial class RadForm2 : Telerik.WinControls.UI.RadForm

{

public RadForm2()

{

InitializeComponent();

this.IsMdiContainer = true;

this.radDock1.AutoDetectMdiChildren = true;

Form1 frm = new Form1(); // this frm is aktive

frm.MdiParent = this;

frm.Text = "Child 1";

frm.Show();

frm = new Form1();

frm.MdiParent = this;

frm.Text = "Child 2";

frm.Show();

frm = new Form1(); // this form should be active

frm.MdiParent = this;

frm.Text = "Child 3";

frm.Show();

}

Dock

answered on 10 Apr 2015

3 answers

1.7K+ views

BeginUpdate() and endUpdate() vs. refresh()

hello,
I have a grid which i wanted to group by columns (there were cell formatting on cell elements)but after removing the grouping condition , there was a problem with the index of cell elements and formatting of cell elements got messed up.

I used me.beginupdate() and me.endupdate() in a sub handling me.groupbychnaged. grid seems to be working fine. I tried me.refresh() and it is not working.

I am wondering what is the difference between these two methods. I thought they both do updating/refreshing grid

cheers,

GridView

answered on 09 Apr 2015

3 answers

272 views

change cell focus color

Hi,
I am wondering if there is anyway to change focus color for whole grid cells or is there any property for setting TableElement focus color?

cheers,

GridView

answered on 09 Apr 2015

1 answer

113 views

AgendaView for scheduler?

Hello! I know that there's an agenda view for the scheduler in the .ASP telerik controls, but I cannot seem to find it in the rad-winform controls. Is there a way to implement it? Thanks

Scheduler and Reminder

answered on 09 Apr 2015