Questions on UI for WPF Forum

3 answers

278 views

[Solved] Frozen Columns, Group Aggregates and scrolling horizontal

I have a RadGridView with FrozenColumnCount=4

When I group, the group header contains an aggregate count function.

But when I scroll to the right - the group header aggregate count is also scrolled away from view. I can still see the group header.

Is there any way to fix that?

I define the Group aggregate on the first column, like this:

<telerik:GridViewDataColumn.AggregateFunctions>

<telerik:CountFunction Caption="Count" ResultFormatString="{}: {0:#,0}" />

</telerik:GridViewDataColumn.AggregateFunctions>

Thanks.

GridView

answered on 29 Mar 2017

1 answer

324 views

Row Selection, Column Selection ,and Cell Seletion Events for spreadsheet

Is there any events are present in spreadsheet or based on selection only we have to figure it out about the selection

Spreadsheet

answered on 29 Mar 2017

7 answers

241 views

Automatic connection routing like in "TableShape" example

Is it possible to configure an automatic connection routing in RadDiagram like in the "TableShape" example?

Please look at "MyRoute.png" for my route looks now and "ExampleRoute.png" for what my route should look like.

Diagram

answered on 29 Mar 2017

1 answer

86 views

Drag&Drop Reorder: how to avoid that a child task is dropped on a different parent node

Hello,

Is there a way to avoid that during the ordering a task child of a summary node is dragged under another summary node?

I think that I have to do this overriding the GanttDragDropBehavior.CanDrop() function but I can't find how to know when the DestinationSlot changes his parent node

Any help will be appreciated
Thanks in advance

GanttView

answered on 29 Mar 2017

1 answer

1.0K+ views

Binding the Password (I know)

Hi Telerik,

I know binding the password should not be done due to the password being in the RAM is bad practice.

Now everything I want is to let the database tell me if there even is a password (I'm NOT loading the password/password hash) so I can set the Variable I was planning on binding to some garbage text (eg. ********) so the user is visually informed there has been a password set before.

What is a way I can archive this?

BTW: What is best practice to use/get the actual password the user entered to store it? Your examples and documentation on this topic are - as often - paper thin.

Thanks a lot

PasswordBox

answered on 29 Mar 2017

2 answers

126 views

[Solved] Pre-defining items for the column filter?

Let's say I have a very large (millions of records) DB of cars but one of the column (colors) has only a couple of different choices (red, green, blue, black, white).

When I'm binding the DB to the GridView (using pagination because I can't load the whole table at once and data virtualization is performing poorly on this amount of data) and trying to filter by color every time I open the filter editor I'm sending a query to my DB asking for Top 1000 Distinct colors which is really slow.

Now my question is, can I have a predefined list of available colors to use for my Filter Editor? Just create a List<String> and feed it to the editor?

Thank you.

GridView

answered on 28 Mar 2017

1 answer

91 views

Need to cancel selection when clicking on RowDetails

Hi,

I am using Mutliple selection mode along with RowDetails. And expanded the RowDetails manually using GridViewRow.MouseDoubleClick event. While clicking on DetailsPresenter the selection process is triggered automatically. Is there any option to cancel the selection when clicking on DetailsPresenter?

Thanks,

Antony

GridView

answered on 28 Mar 2017

9 answers

355 views

Hide listbox source item on dragging

Hello,

I have two radlistboxes in my user control.

I need on dragging to hide (make invisible) the item in source radlistbox and keep showing up the dragged item at the same time.

If I make the source item to be invisible, the dragged item is also becomes invisible.

Is there any solution to this issue ?

This is the styles of radlistbox and radlistbox item I use :

Thank you,

Alex.S

ListBox

answered on 28 Mar 2017

4 answers

163 views

MVVM RadDocumentPane defined in external xaml don't show Header

I would to use the RagDocking control as container of the views of my application as described in you documentation at the page

http://docs.telerik.com/devtools/wpf/controls/raddocking/features/panes/panesource.html .

In my main windows xaml file I added the following lines:

<telerik:RadDocking PanesSource="{Binding Views}">

<telerik:RadDocking.DockingPanesFactory>

<telerik:DockingPanesFactory/>

</telerik:RadDocking.DockingPanesFactory>

</telerik:RadDocking>

In my mainViewModel I added this code to add a new view using this code all works fine:

RadDocumentPane view = new RadDocumentPane() { Header = "Customer" };

_views.Add(view);

RaisePropertyChanged(() => Views);

Now, I would to define the vews of my application in separated xaml files. I added a new UserControl to my project named view1 and I changed the view1.xaml file in this way

<telerik:RadDocumentPane x:Class="MyApp.Views.TestView"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="300" Header="Test">

<Grid>

<TextBlock>Test</TextBlock>

</Grid>

</telerik:RadDocumentPane>

and the view1.cs file in this way

namespace MyApp.Views

{

public partial class TestView : RadDocumentPane

{

public TestView()

{

InitializeComponent();

}

Then I changed the code to add a new in this way:

//RadDocumentPane view = new RadDocumentPane() { Header = "Customer" };

TestView view = new TestView();

_views.Add(view);

RaisePropertyChanged(() => Views);

With this changes, the new pane is added to the docking view but unfortunately without the header tab.

Is it possible to define de panes in separated xaml file as I done? Or have I to use the RadDocumentPane class and place my view in the Content property of the RadDocumentPane?

Thanks in advance

Docking

answered on 28 Mar 2017

1 answer

1.2K+ views

[Solved] GridViewComboBoxColumn with Enums

I have at WPF app with a main window using MVVM and EF.

In the MainView I have RadGridView with a GridViewComboBoxColumn that is bound to a property on my model,

I would like to use it with a Enum when the user want to edit the value.

XAML in MainView

<Window>
    <UserControl.DataContext>
        <viewModel:MainViewModel/>
    </UserControl.DataContext>
    <Grid>
         <telerik:RadGridView ItemsSource="{Binding MyUserList}">
    <telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="ID"
                            DataMemberBinding="{Binding Id}"
IsReadOnly="True" />
<telerik:GridViewComboBoxColumn DataMemberBinding="{Binding UseName}"
ItemsSource="{Binding AvailableUserNameEnum}"
                                UniqueName="UseTheName"
      </telerik:RadGridView.Columns>
      </telerik:RadGridView>
    </Grid>
</Window>

Code in MainViewmodel

public enumUseNameEnum
{
   NA,
   No,
   Yes
}
public List<UseNameEnum> AvailableUseNameEnum { get; set; }
private void Fill AvailableUseNameEnums()
        {
            AvailableUseNameEnum = new List<UseNameEnum>
            {
                UseNameEnum.Yes,
UseNameEnum.No,
                UseNameEnum.NA
            };
        }
Data from the Table User is hold the this list, that is bound to the grid:
public ObservableCollection<Users> MyUserList { get; set; }

Table User has 2 Columns: ID and UseName

The Grid shows data fine, except for the UseName Column, that is blank. When clicked in the combobox , it has data , the 3 options, but when one is selected the values is not showing in the cell. It is still blank.

GridView

answered on 28 Mar 2017