Questions on UI for WPF Forum

0 answers

131 views

Compare between two MapPinPoints

How to compare two MapPinPoint

MapPinPoint mapPinPoint1 = new MapPinPoint();
MapPinPoint mapPinPoint2 = new MapPinPoint();

How can you check if they are equal?

Map

asked on 22 Dec 2022

1 answer

182 views

Different Style for Parent and Child rows in TreeListView

Hi,

I am using a TreeListView to display financial data (element with costs per month) with sub-totals as the parent rows. The data structure is thus homogenous and a good fit for the TreeListView. The binding and data work perfectly, but now I would like to refine the styling to show a greater contrast between parent and child (e.g. make sub-total rows bold). Is there an simple way to do this?

TreeListView

answered on 21 Dec 2022

1 answer

217 views

RadEntityFrameworkCoreDataSource and RadGridView

Hello,

I'm trying to set up a RadGridView to display a RadEntityFrameworkCoreDataSource source using code-behind (currently a requirement) and cannot get the grid to populate with any data. I can access the data by using LINQ just fine, and can populate the grid using a ToList() version of that data, but I believe that it's just a copy of the data, and cannot be modified and saved to the original context.

Here's an example of what I'm trying to do:

var options = new DbContextOptionsBuilder<Test_Context>();
options.UseSqlServer(ConnectionString);
using var testContext= new Test_Context(options.Options);

RadEntityFrameworkCoreDataSource source = new()
{
    Name = "coreDataSource",
    DbContext = testContext,
    QueryName = "TblCustomer"
};

// This doesn't populate the grid
rgvCustomers.ItemsSource = source.DataView;
                
// This populates the grid
var customerList = textContext.TblCustomer.Where(customer => customer.Id != -1).ToList();
rgvCustomers.ItemsSource = customerList ;

How do I get the RadEntityFrameworkCoreDataSource to query the data so that it can populate the grid?

Also, how would I go about only querying the customers with an Id != -1 using said Data Source? Is that as simple as setting the filters, then querying?

I'm new to this, so apologies if I've missed a simple step.

GridView

answered on 20 Dec 2022

1 answer

231 views

Bind multiple searching values in autocomplete box

<telerik:RadAutoCompleteBox TextSearchMode="Contains" SelectedItem="{Binding Entity, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" DisplayMemberPath="Name" HorizontalAlignment="Stretch" SelectionMode="Single" Margin="125,100,0,10" VerticalAlignment="Top" Width="Auto" Grid.Column="0" Name="customerACB" SearchTextChanged="customerACB_SearchTextChanged" AutoCompleteMode="Suggest" >
<telerik:RadAutoCompleteBox.DropDownItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Label Content="{Binding Code}" Width="70" />
<Label Content="{Binding Name}" Width="310" />
</StackPanel>
</DataTemplate>
</telerik:RadAutoCompleteBox.DropDownItemTemplate>
</telerik:RadAutoCompleteBox>

Currently, i am able to search using "Name". If I change displaymemberpath to code it will show the result if the search string match with "code"
I need to search using both values "Name" and "code".

AutoCompleteBox

answered on 16 Dec 2022

3 answers

812 views

RadGridView - ToolTip for Dynamically Created Column

Hi -

I have a RadGridView that populates dynamically based on columns present in an Excel spread-sheet. I'm able to create the columns but not having luck getting the ToolTip to display.

Thanks in advance - Jon

Here is my code snippet:

foreach (DataColumn column in dt.Columns)
{
Telerik.Windows.Controls.GridViewDataColumn gridviewDataColumn = new Telerik.Windows.Controls.GridViewDataColumn
{
Header = column.ColumnName,
Name = column.ColumnName,
DataMemberBinding = new System.Windows.Data.Binding(column.ColumnName),
// Tooltip = ???
};

dtg_PreviewMapGrid.Columns.Add(gridviewDataColumn);
}
dtg_PreviewMapGrid.ItemsSource = dt;

GridView

updated answer on 15 Dec 2022

0 answers

136 views

Print year calendar with some days marked

Hi,

I am looking for a component to print a Year Calendar with selected days marked.

Just printing, no dialogboxes etc.

Is there a component and an example how to do this?

Kind regards,
André

Calendar

asked on 14 Dec 2022

1 answer

136 views

Taskboard with ItemTemplate definition, getting error "Both 'ContentTemplate' and 'ContentTemplateSelector' are set"

Hi,
Using Telerik.UI.for.Wpf.NetCore.Xaml (2022.3.912).
I'm getting an error for the taskboard the first time it loads
Both 'ContentTemplate' and 'ContentTemplateSelector' are set; 'ContentTemplateSelector' will be ignored. RadTaskBoardItem:'RadTaskBoardItem' (Name='')
this error as many as the Item task that appears.

Then when I exit and return to the taskboar page, another error appears:
Cannot find source: RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.RadTaskBoard', AncestorLevel='1'

        <telerik:RadTaskBoard x:Name="RadTaskBoard01"  Grid.Row="3" 
                              ItemsSource="{Binding TaskboardCollView}" 
                              GroupMemberPath="State"
                              Background="{StaticResource StripeColor}" 
                              AutoGenerateColumns="False">
            <telerik:RadTaskBoard.DragDropBehavior>
                <localservice:CustomTaskBoardDragDropBehavior/>
            </telerik:RadTaskBoard.DragDropBehavior>
            <telerik:RadTaskBoard.Columns>
                <telerik:TaskBoardColumn GroupName="NEW" Header="Red"  />
                <telerik:TaskBoardColumn GroupName="INPROGRESS" Header="Yellow" />
                <telerik:TaskBoardColumn GroupName="REVIEWED" Header="Gray" />
                <telerik:TaskBoardColumn GroupName="DONE" Header="ForestGreen" />
            </telerik:RadTaskBoard.Columns>
            <telerik:RadTaskBoard.ColumnHeaderTemplate >
                <DataTemplate>
                    <Grid>
                        <Grid.ColumnDefinitions >
                            <ColumnDefinition/>
                            <ColumnDefinition/>
                            <ColumnDefinition/>
                        </Grid.ColumnDefinitions>
                        <Border  Width="17" Grid.Column="0" Background ="{Binding Header}"  BorderThickness="1" BorderBrush="Black" CornerRadius="10" ></Border>
                        <TextBlock Grid.Column="1" Text="{Binding GroupName}"  HorizontalAlignment="Left"  />
                        <TextBlock Grid.Column="2" Margin="10 ,0 ,10, 0" Text="{Binding Items.Count}" HorizontalAlignment="Right" />
                    </Grid>
                </DataTemplate>
            </telerik:RadTaskBoard.ColumnHeaderTemplate>
            <telerik:RadTaskBoard.ItemTemplate>
                <DataTemplate>
                    <Grid >
                        <Grid.ColumnDefinitions >
                            <ColumnDefinition Width="5"/>
                            <ColumnDefinition/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions >
                            <RowDefinition/>
                            <RowDefinition Height="25"/>
                        </Grid.RowDefinitions>
                        <Grid Grid.Row="0" Grid.RowSpan="2" Grid.Column ="0" 
                              Background="{Binding CategoryName, Converter={StaticResource CategoryToColour}}">
                        </Grid>
                        <StackPanel  Grid.Row="0"  Grid.Column ="1" >
                            <TextBlock Text="{Binding Parenttitle}"  Margin="15,0,5,0"   Foreground="{StaticResource StripeColor}"  FontSize="16" TextWrapping="Wrap"  />
                            <StackPanel Visibility="{Binding Isparent, Converter={StaticResource BoolToVisible}}">
                                <TextBlock Text="Have Sub Task"
                                           HorizontalAlignment="Right"
                                           Margin="0,0,5,0"
                                           Foreground="Red"
                                           FontWeight="Bold"
                                           FontStyle ="Italic" 
                                           FontSize="12" />
                            </StackPanel>
                            <StackPanel Visibility="{Binding Title, Converter={StaticResource EmptyToVisible }}">
                                <TextBlock Text="{Binding Title}"
                                           Margin="15,0,5,0"
                                           Foreground="Brown"
                                           TextWrapping="WrapWithOverflow"
                                           FontSize="14" />
                            </StackPanel>
                            <TextBlock Text="{Binding Description}"
                                       Margin="15,0,5,0"
                                       TextWrapping="Wrap"
                                       FontSize="14" />
                        </StackPanel>

                        <TextBlock Text="{Binding Assignee}"  Grid.Row="1"   Grid.Column ="1" Margin="15,0,15,0" Foreground="ForestGreen"      
                                   FontSize="16" FontStyle="Italic"  HorizontalAlignment="Right" VerticalAlignment="Bottom" />
                    </Grid>
                </DataTemplate>
            </telerik:RadTaskBoard.ItemTemplate>
        </telerik:RadTaskBoard>

TaskBoard

answered on 13 Dec 2022

1 answer

141 views

Change DragVisual Template in OnGiveFeedback event

Hello!
I want to change DrageVisual Template in OnGiveFeedback event instead of set e.SetCursor(Cursors.Cross); Is it possible?

I am setting DragVisual like this

        private void OnDragInitialize(object sender, DragInitializeEventArgs e)
        {
           
                e.DragVisual =new ContentControl { Name = "DragVisual", ContentTemplate = 
                this.AssociatedObject.Resources["DraggedItemTemplate"] as DataTemplate, DataContext = items.Count() };
                e.DragVisualOffset = e.RelativeStartPoint;
                e.AllowedEffects = DragDropEffects.All;          
                e.Handled = true;
                
            }
        }

And then set cursor type in this method

        private void OnGiveFeedback(object sender, Telerik.Windows.DragDrop.GiveFeedbackEventArgs e)
        {            
            if (e.Effects == DragDropEffects.Move)
            {
                e.UseDefaultCursors = false;
                e.SetCursor(Cursors.Arrow);
            }
            else if (e.Effects == DragDropEffects.None)
            {                
                e.UseDefaultCursors = false;
                e.SetCursor(Cursors.Cross);
            }
            else
            {
                e.UseDefaultCursors = true;
            }
            e.Handled = true;
        }

DragAndDrop

answered on 12 Dec 2022

2 answers

137 views

TimeIndicator ScheduleView Binding

How do I bind the DateTime Property (return value for GetDateTime())

of a class implementing ITimeIndicator to a Property of my ViewModel?

my thoughts:

         <telerik:RadScheduleView.TimeIndicatorsCollection>
            <telerik:TimeIndicatorsCollection>
               <local:CustomTimeIndicator Location="WholeArea" Now="{Binding CurrentNow}" />
            </telerik:TimeIndicatorsCollection>
         </telerik:RadScheduleView.TimeIndicatorsCollection>

public class CustomTimeIndicator : DependencyObject, ITimeIndicator
{
   public static readonly DependencyProperty NowProperty = DependencyProperty.RegisterAttached("Now", typeof(DateTime), typeof(CustomTimeIndicator));

   public DateTime Now
   {
      get => (DateTime)GetValue(NowProperty);
      set => SetValue(NowProperty, value);
   }

   public DateTime GetDateTime()
   {
      return Now;
   }

   public TimeSpan Offset { get; set; }

   public CurrentTimeIndicatorLocation Location { get; set; }
}

Gives me:

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=CurrentNow; DataItem=null; target element is 'CustomTimeIndicator' (HashCode=47896050); target property is 'Now' (type 'DateTime')

ScheduleView