Questions on UI for WinForms Forum

4 answers

206 views

I created a RadContextMenu and added it to my RadGridView, but the menu appears to have no theme. It doesn't look anything like the default menu and the ThemeName is blank.

I tried this but the the RootElement doesn't seem to have a ForceApplyTheme() method anymore.

ContextMenu

answered on 27 Feb 2013

6 answers

582 views

ContextMenuOpening event doesnt fire up when right click on the GridView

Hi guys,
This is how I use this event. It worked fine in Q3 2011.

this.radGridView1.ContextMenuOpening += new Telerik.WinControls.UI.ContextMenuOpeningEventHandler(this.radGridView1_ContextMenuOpening);

private void radGridView1_ContextMenuOpening(object sender, ContextMenuOpeningEventArgs e)

{

          //implementation code here

              e.ContextMenu = radContextMenu1.DropDown;

}

Since I started using Q3/2012, this event doesnt seem to work anymore. Any suggestion?

GridView

answered on 27 Feb 2013

1 answer

151 views

Scrolling a chart takes my labels with it...

Hi. I'm working with the winforms chartview and exploring what it can do. I've noticed that If I scroll and zoom my chart with control/mouse-wheel and click/drag operations, the labels fly off the X axis and start scrolling with the chart... I've attached a pic and some code.

Ideas?

ChartPanZoomController panZoomController = new ChartPanZoomController();

panZoomController.PanZoomMode = ChartPanZoomMode.Both;

chart.Controllers.Add(panZoomController);

private void DrawChart(string ticker)
{
    chart.Series.Clear();
    chart.ShowPanZoom = true;
 
    CandlestickSeries series = new CandlestickSeries();
    List<DailyOHLCV> prices = hStocks[ticker];
    foreach (DailyOHLCV dayPrice in prices)
        series.DataPoints.Add(
            new OhlcDataPoint(dayPrice.open, dayPrice.high, dayPrice.low, dayPrice.close, dayPrice.date));
 
    DateTimeCategoricalAxis axis = new DateTimeCategoricalAxis();
    axis.LabelFormat = "{0:dd-MMM-yy}";
    axis.LabelRotationAngle = 90;
    axis.LabelFitMode = AxisLabelFitMode.Rotate;
    axis.MajorTickInterval = chart.Width / 10;
    series.HorizontalAxis = axis;
    chart.Series.Add(series);
}

ChartView

answered on 27 Feb 2013

1 answer

539 views

RadTextBox Return key behavior

How do I get the RadTextBox to respond to the Return key by moving to the next control on the form?

TextBox

answered on 27 Feb 2013

3 answers

127 views

Problem with HorizontalScrollBar

I have a grid anchored on all sides in its container (radPageViewPage).

I have set
    AutoSizeColumnsMode = Fill
    AutoSizeRows = False or True
    HorizontalScrollState = AlwaysShow or AutoHide

However, the Horizontal Scroll Bar is *never* shown.

However, when I set
    AutoSizeColumnsMode = None

The HSB is displayed. However, the behaviour is erratic when I also set
    AutoSizeRows = True

because when I change the size of a column, the width of the grid changes.

Because some of the columns have a minimum width, the fact that the HSB *never* is displayed with
   AutoSizeColumnsMode = Fill
even when some of the columns are hidden, seems like a bug to me.

Helen

GridView

answered on 27 Feb 2013

1 answer

515 views

How to sort child nodes of a node.

How can I sort the child nodes of a particular node?

Treeview

answered on 27 Feb 2013

1 answer

191 views

No Undo method on RadTextBox control?

I want my RadTextBox to undo the current changes when the user hits the Esc key. I am using the OnKeyUp event of the RadTextBox.

However, unlike the standard Windows Forms text box, there is no Undo method on the RadTextBox. Really???

Curiously, there is a CanUndo property on the RadTextBox...

How do I get the behavior I want?

private void radTextBox_Base_KeyUp(object sender, KeyEventArgs e)

{

if (e.KeyCode == Keys.Escape)

(sender as RadTextBox).????

}

TextBox

answered on 27 Feb 2013

7 answers

1.0K+ views

Only accepts numeric characters.

I need to create one RadDropDownList control in which user can enter only digits but not characters.
Hope I Will get answer soon, Thanks

DropDownList

answered on 27 Feb 2013

6 answers

253 views

How to place background image to the right?

e.NodeElement.BackgroundImage = myImage;

See attached image. I want to place this extra icon to the right. Something like "Right-align background image!". Is this possible?

Treeview

answered on 26 Feb 2013

2 answers

279 views

RadGridView ComboBoxColumn displays no value for member with empty string value is selected

Hi, I am using a RadGridView and have a column that is a GridViewComboBoxColumn.
The ComboBox is bound to a collection of values that are :

ValueMember : DisplayMember
"" : [None]
A : A
B : B
C : C

If the user selects value member A, B or C, all is fine and the associated display member is displayed.
But if the user selects the value member "" (an empty string) the display member [none] is not displayed and the ComboBox displays nothing. It is like as if when I select an empty string the list will by default go back to selectedIndex = -1.

Here's a code example:

public class ItemComboBox

{

public string CleItem { get; set; }

public string ValeurItem { get; set; }

}

List<ItemComboBox> liste = new List<ItemComboBox>();

liste.add(new ItemComboBox("", "[None]"));

liste.add(new ItemComboBox("A", "A"));

liste.add(new ItemComboBox("B", "B"));

liste.add(new ItemComboBox("C", "C"));

//cboInsRslCd is my ComboBoxColumn

cboInsRslCd.DataSource = liste;