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3 answers
123 views
hello,
Am using radchart in my wpf application, my requirement is based on Y axis value i have to set the different color for point marks in same line series chart.
for example am having values from 50 to 100, let say i want to set point mark Redfor values between 50 to 75, and remaining green in the same line series chart area..
 
please help to find the solution...

i have try the below option but it not works,,
foreach (var item in qry)
                    {
                        if(condition)
                        {
                        line.Appearance.Fill = new SolidColorBrush(Colors.Green);
                        }
                        else if (condition)
                        {
                            line.Appearance.Fill = new SolidColorBrush(Colors.Red);
                        }}
i need like this kind of effect in my wpf application ...

http://www.telerik.com/help/wpf/radchart-howto-set-custom-fill-for-pointmarks-depending-on-condition.html

my code below...
******************************
 public void chartmain()
        {
            listStackPanel.Visibility = System.Windows.Visibility.Hidden;
            try
            {
                
                var qry = (from s in SWindow.HBList
                           where (s.User_id.Equals(W.Profile.UserId))
                           orderby s.Test_date ascending
                           select new { s.HB_score, s.Test_date }).ToList();

                if (qry.Count == 0)
                {
                    SMessageBox.MessageBox.ShowInformation("No Records Found...");
                    radChart.Visibility = System.Windows.Visibility.Hidden;
                    listStackPanel.Visibility = System.Windows.Visibility.Hidden;
                }
                else
                {
                    

                   
                    radChart.Visibility = System.Windows.Visibility.Visible;
                    radChart.DefaultView.ChartArea.AxisX.IsDateTime = true;
                    radChart.DefaultView.ChartArea.AxisX.LayoutMode = AxisLayoutMode.Auto;
                    radChart.DefaultView.ChartArea.AxisX.LabelRotationAngle = 45;
                    radChart.DefaultView.ChartArea.AxisX.DefaultLabelFormat = "dd-MMM";

                    DataSeries lineSeries1 = new DataSeries();

                    foreach (var item in qry)
                    {
                        SMessageBox.MessageBox.ShowInformation(item.ToString());
                        lineSeries1.Add(new DataPoint() {
                            YValue = Convert.ToDouble(item.HB_score), XValue = item.Test_date.ToOADate() 
                        
                        });

                       
                    }

                    

                    
                    LineSeriesDefinition line = new LineSeriesDefinition();
                    radChart.DefaultSeriesDefinition = line;

                    line.Appearance.Fill = new SolidColorBrush(Colors.Black);
                    line.Appearance.Stroke = new SolidColorBrush(Colors.DarkGreen);
                    line.Appearance.PointMark.Stroke = new SolidColorBrush(Colors.Black);
                    line.ShowPointMarks = true;
                    line.ShowItemLabels = true;
                    lineSeries1.Definition = line;


                    this.BHGridView.ItemsSource = qry;
                    this.radChart.DefaultView.ChartLegend.Visibility = System.Windows.Visibility.Collapsed;

                     this.radChart.DefaultView.ChartArea.DataSeries.Add(lineSeries1);




                }
            }
            catch (Exception ex) {
                SMessageBox.MessageBox.ShowError(ex.Message);
            }
        }
       

Martin Ivanov
Telerik team
 answered on 01 Aug 2016
1 answer
122 views

I want to have a MarkerBrush based on a property of the data object being bound to. For example,

 

```

class MyDataPoint

{

   public DateTime XValue {get;set;}

   public double YValue {get;set;}

   public bool IsRed {get; set;}

}

```

 

I want all points where IsRed=true to be rendered red, and blue when false. Is it possible? 

I've made a Style with TargetType IndicatorItem and used DataTriggers but the style is always overridden with the default marker colour,

Evgenia
Telerik team
 answered on 29 Jul 2016
2 answers
70 views

Hi, I use a radgridview ,like this:

this.gridUserControl.gridview.ItemsSource = xmlElement.ChildNodes;

add a new dataitem to xmlElement...

this.gridUserControl.gridview.ItemsSource = xmlElement.ChildNodes; //rebinding

int i = gridUserControl.gridview.Items.Count;
XmlElement lastitem = (XmlElement)gridUserControl.gridview.Items[i - 1];
gridUserControl.gridview.SelectedItem = lastitem;
gridUserControl.gridview.BeginEdit();

 

I want to go in the edit status when add a new dataitem directly. It works well. But the problem is that I press any key the first time, the edit status will be ended. And the edit cell's value is the only the press key's value. That's inexplicable. Please help me to solve the problem ,thanks!

Jonathan
Top achievements
Rank 1
 answered on 29 Jul 2016
1 answer
451 views
Dear Telerik-Team,

we have a RadMenu that has bound his data over a ViewModel. Depending on the data we want to generate RadMenuGroupItems or RadMenuItems.
The bound data class is this:

public class MenuItem
    {
        public List<MenuItem> SubItems { get; set; }
        public string Text { get; set; }
        public Type EditUserControlType { get; set; }
        public Action<object> Navigate;
        public int RowIndex { get; set; }
        public int ColumnIndex { get; set; }

        public MenuItem()
        {
            SubItems = new List<MenuItem>();
        }
    }

if the MenuItem has SubItems we want that a RadMenuGroupItem is dynamically created. If the MenuItem has no SubItems we want that a RadMenuItem is created.
Is there a similar way of Item Creation like the dynamic assignemnt of Styles over the property "ItemContainerStyleSelector". We need something called "ItemContainerControlSelector"
but we didn't find anything in the documentation.

Important: We don't want to create the items dynamicalle in code behind of the view. We want to assign this logic via XAML in the View.

How can we do that?

Thanks for your help.

Kind regards
Polya
Telerik team
 answered on 29 Jul 2016
14 answers
531 views
Dear sir,

I am evaluating RadPropertyGrid for my application. 

First, please see a attached image.

I made a property class for the object.

public class MyProperty
{
private ObservableCollection<VideoProfile> videoProfiles;
public string a{ get; set; }
public string b{ get; set; }

public ObservableCollection<VideoProfile> VideoProfiles
        {
get {return videoProfiles;}
}
...
...
}

Than, I could see auto generated VideoProfiles Collection editor in run time.

Question.
1. I want to customize Collection editor style to VideoProfiles. Items section is displaying class path
2. I have referred the document, but It showed only image example about CollectionEditor, Can you give me a sample program about this? (Because it's first time that I develop a wpf application)
3. I want to use DataTemplateSelector to change properties of VideoProfiles. Because I need to show combobox for a property that should be selected in external items.

Best regards,

Stefan Nenchev
Telerik team
 answered on 29 Jul 2016
2 answers
366 views
Hi, I'm wondering how do I change the template such that there's a clear button within the Autocomplete box, something like how the radmaskinput box are.

[Search....           [x]]   <- AutocompleteBox
Nasko
Telerik team
 answered on 29 Jul 2016
1 answer
691 views

Hi I have a datatemplate I would like to apply for the GridViewRow tooltip. May I ask how abouts I would do that?

 

<DataTemplate x:Key="AppointmentToolTipTemplate">
    <Grid MaxWidth="300" Background="White">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="43" />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <TextBlock Text="{Binding Subject}" Grid.ColumnSpan="2" TextWrapping="Wrap" Margin="5 8 4 3" FontWeight="Bold" />
        <Button IsEnabled="False" Background="Transparent" Grid.Row="1"  VerticalAlignment="Top" HorizontalAlignment="Left" Margin="5 5 0 0" Width="28" Height="29" ContentTemplate="{StaticResource Calendar.Clock}"></Button>
        <StackPanel Orientation="Vertical" Grid.Column="1" Grid.Row="1" Margin="0 5 0 0">
            <StackPanel Orientation="Horizontal" Margin="0 0 0 0">
                <TextBlock Text="{Binding Start, StringFormat='hh:mm tt', Mode=TwoWay}" TextWrapping="Wrap" FontSize="10" />
                <TextBlock Text=" - " FontSize="10" />
                <TextBlock Text="{Binding End, StringFormat='hh:mm tt', Mode=TwoWay}" TextWrapping="Wrap" FontSize="10" />
            </StackPanel>
            <TextBlock Text="{Binding Start, StringFormat='dddd dd MMM yyyy', Mode=TwoWay}" Margin="0 3" FontSize="10" />
        </StackPanel>
        <TextBlock Grid.Row="2" Grid.ColumnSpan="2" Text="{Binding Body}" Margin="5 3 5 8" TextWrapping="Wrap"  />
    </Grid>
</DataTemplate>
Stefan Nenchev
Telerik team
 answered on 29 Jul 2016
1 answer
318 views

In the lastest version of the GridView, it is now "builtin" that when a user clicks with the right mouse button on a row, it is selected as if the user did a CTRL+Click. I am however not able to disable this behaviour.

We use a context menu on right click and do not want the selected state of a row to change once a user does this. We get a lot of negative feedback about this.

How do I disable this rightclick -> select row behaviour?

Thanks,

Marcel

Marcel
Top achievements
Rank 1
 answered on 29 Jul 2016
3 answers
196 views

Hello,

I want to display a DataForm for enter a new element in a grid. But this grid is generated dynamically.

For that, i use a: "dynamic data = new ExpandoObject()" and feed that with: "data.field1 = "string"; data.field2 = 10" and bind my DataForm on it: "<telerik:RadDataForm x:Name="RadDataForm" AutoGenerateFields="True"
                                     AutoCommit="True" EditEnded="DataForm_OnEditEnded"
                                     AutoEdit="True" CommandButtonsVisibility="Commit,Cancel"
                                     CurrentItem="{Binding Path=DataContext.data, RelativeSource={RelativeSource Self}}"
                                     Header="Hello world"
                                     KeyboardNavigation.TabNavigation="Cycle">
</telerik:RadDataForm>"

My problem now, the DataForm change my Int type on string type...

Have you some idea?

Vivien
Top achievements
Rank 1
 answered on 28 Jul 2016
1 answer
224 views
Hi,

I have rows in the grid grouped by a field - Currency. I have a column (Amount) for which I define aggregate function Sum. Result of aggregate function is shown in the header of each group. All works great.

Now I want to show a summary of all Currencies and total Amounts for each of them at the bottom of the grid. For the sake of this example let’s say I have 100 rows in the grid and only two distinct values for Currency field: USD and RUB.

I want to have summary that will look like this:
Total USD -   1,234.00
Total RUB - 13,023.00

Using Grid.AggregateResults property only provides me with a total aggregate across all currencies:
Total – 14,257.00
with no break-down by groups.

How can I achieve this without grouping my data myself – RadGridControl already did this, I don’t want to recalculate the same values again?

Thank you,
Dmitriy
Stefan Nenchev
Telerik team
 answered on 28 Jul 2016
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