Questions on UI for WPF Forum

3 answers

227 views

Hi,

I need a ColorPicker (or some other wat to select and show a color) in a column, the value is a string (html/hex as color values).

How do make this, code please...

Thanks!

GridView

answered on 24 May 2011

1 answer

89 views

Drop to empty grid

Hello

I have 2 gridviews and one of them is empty. When i drop a row to second grid, it is not even firing DropInfo event. Is there a solution for dropping to an empty Grid?

Thanks
Ram

GridView

answered on 24 May 2011

10 answers

380 views

RadTreeListView with Checkbox, Multiple selection and not CanUserSelect

Hi,

I want the user to be able to navigate through the tree and actively select one or several nodes by the use of the keboard.

I have tried the all kinds of different options on the RadTreeListView. Added the GridViewSelectColumn, set the SelectionMode to Extended, set the CanUserSelect to false.
When I try to navigate with the keyboard I get unexpected behaviour.

What settings should I use?

Best regards
Erik

TreeListView

answered on 24 May 2011

7 answers

96 views

More than 2 data relations, determining table on click

I have auto generated columns on (I want that so the code can be generic, I don't want to specify table names and layout).
I am binding to 3 tables in a DataSet by an Id (PROPERTY_ID) , so there are three levels of nesting.

// start code snippet...

x_GRID.AutoGenerateColumns = true ;

dd.Tables.Add(t); // PARENT TABLE

dd.Tables.Add(t0); // CHILD TABLE A

dd.Tables.Add(t1); // CHILD (CHILD) TABLE B - This is a child of table A

dd.Relations.Add(new DataRelation("Prop_Params", dd.Tables[0].Columns["PROPERTY_ID"], dd.Tables[1].Columns["PROPERTY_ID"]));

dd.Relations.Add(new DataRelation("Section_Params", dd.Tables[1].Columns["PROPERTY_ID"], dd.Tables[2].Columns["PROPERTY_ID"]));

x_GRID.ItemSource = dd;

// end code snippet...

A few questions - I am in the DataLoading event (see questions in comments below)

void wpfgv_DataLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDataLoadingEventArgs e)

{

var dataControl = (GridViewDataControl)sender;

// 1. ParentRow != null tells me that it is a child table, 

// but I need to know which CHILD TableName it is

// So that I can do different things for child table A and child (child) table B 

// (like hide a column that child table A has but child table B does not.   

// How do I get the TableName of what dataControl is referring to 

// (I could not seem to find it in my debugging watches)???

if (dataControl.ParentRow != null)

{

dataControl.ShowGroupPanel = false ;

// 2. I "think" because I have AutoGenerateCols = true, datacontrol.Columns = null

// so this crashes if left uncommented...

// just trying to verify my thinking on why it is null.

dataControl.Columns["PROPERTY_ID"].IsVisible = false; // will crash

// 3. x_GRID is the name of my GridView Control.

// While this works, it only hides the PROPERTY_ID of the

// PARENT table column called PROPERTY_ID

// and does NOT hide child columns of the same name (which is exactly 

// the opposite of what I want to do).

// Is there a way without setting x_GRID.AutoGenerateColumns = false

// and binding each column

// in code or xaml to hide just columns of the children???

x_GRID.Columns["PROPERTY_ID"].IsVisible = false ;

}

Thanks,

Daryl

GridView

answered on 24 May 2011

3 answers

196 views

Programatically expanding given item

Hot to programatically expand some item? I would like to do something like:
Items[0].Items[4].Expand()

I know there is a method called ExpandItemByPath but i cannot guess how to use it and documentation says absolutely nothing about it.

Thanks in advance for any help

PanelBar

answered on 24 May 2011

1 answer

210 views

Use a LinearGradient with a AreaSeries?

Hi,

I'm trying to give my price charts a 'Bloomberg' like look, i.e. I want to fill the area beneath the data series with a LinearGradientBrush.

I tried several options:
a) setting the PaletteBrushes like this:

<telerik:RadChart.PaletteBrushes>

<LinearGradientBrush StartPoint="0,0" EndPoint="0,1">

<GradientStop Color="Red" Offset="0" />

<GradientStop Color="BlueViolet" Offset="1" />

</LinearGradientBrush>

</telerik:RadChart.PaletteBrushes>

b) setting Appearance.Fill on the AreaSeriesDefinition like this:

Appearance = new SeriesAppearanceSettings

{

Fill = new LinearGradientBrush(Colors.OrangeRed, Colors.Blue, 90)

}

c) finally by creating a new style for the SelfDrawingSeries object and setting the BackgroundStyle:

<Setter Property="BackgroundStyle">

<Setter.Value>

<Style TargetType="Shape">

<Setter Property="Fill">

<Setter.Value>

<LinearGradientBrush StartPoint="0,0" EndPoint="0,1">

<GradientStop Color="OrangeRed" Offset="0"/>

<GradientStop Color="Blue" Offset="1"/>

</LinearGradientBrush>

</Setter.Value>

</Setter>

<Setter Property="Opacity" Value="0.5" />

</Style>

</Setter.Value>

</Setter>

All three approaches produced a visible effect (wow!) but it appears as if only the start color is used to fill the area of the series.

Is there something I'm getting or doing wrong or is this a bug?

Thanks,
Thorsten

Chart

answered on 24 May 2011

1 answer

634 views

set column bold in code

I want set a column to be the font bold in the program-code (not in xaml).

How can i do this?

GridView

answered on 24 May 2011

1 answer

91 views

Flickering Stripline

Hi, I have line charts place in tabcontrol with the axisx StripLinesVisibility set to visible and the axisy set to collapsed. And everytime i change tab back for forth, I will have the issue of the StripLines flickering. Is this a known bug?

Chart

answered on 24 May 2011

2 answers

153 views

Does RadCarousel Support Vertical Orientation?

Hi,

Is there a way i can set the radcarousel so my items scroll vertically?

Thanks!

Bill

Carousel

answered on 24 May 2011

1 answer

105 views

Want to select a gridview column.

Hello
I have a context menu in my gridview, and i need when user do right click on grid view column then i want to select that pertiular column, how can i do it in telerik grid view? What type of event i can capture to do this or is there any another way to do this?

GridView

answered on 24 May 2011