Questions on UI for WPF Forum

4 answers

491 views

combobox as suggestion/autocomplete from database

I'm able to get items from a database into a combobox, but it's querying way too much data. Also, the selected item isn't displaying the string I expected. Instead, it's showing the object type as a string. I clearly don't understand something and I'm stuck even though I'm following this.

Database table name = CityCountyState, e.g.

City County State

--------- --------- ---------

City1 County1 State1

City1 County2 State1

City2 County3 State2

City3 County4 State3

A city can be in more than one county, which is why I want to use a complex data template:

01.<DataTemplate x:Key="ComboBoxCustomTemplate">

02. <Grid Margin="0,2,0,2">

03. <Grid.ColumnDefinitions>

04. <ColumnDefinition />

05. <ColumnDefinition />

06. </Grid.ColumnDefinitions>

07. <Grid.RowDefinitions>

08. <RowDefinition />

09. <RowDefinition />

10. </Grid.RowDefinitions>

11. <TextBlock TextAlignment="Left" Grid.ColumnSpan="2" Text="{Binding City}" />

12. <StackPanel Grid.Row="1" Grid.Column="0" Orientation="Horizontal">

13. <TextBlock Text="County: " />

14. <TextBlock Foreground="Blue" Text="{Binding County}" />

15. </StackPanel>

16. <StackPanel Grid.Row="1" Grid.Column="1" Orientation="Horizontal">

17. <TextBlock Text="State: " />

18. <TextBlock Foreground="Blue" Text="{Binding State}" />

19. </StackPanel>

20. </Grid>

21.</DataTemplate>

Combo box XAML:

1.<telerik:RadComboBox

2. IsEditable="True"

3. StaysOpenOnEdit="True"

4. ItemsSource="{Binding Path=CitiesCountiesStates}"

5. SelectedItem="{Binding Path=SelectedCityCountyState}"

6. OpenDropDownOnFocus="True"

7. IsFilteringEnabled="True"

8. ItemTemplate="{StaticResource ComboBoxCustomTemplate}" />

Viewmodel:

01.public class AddEditViewModel : ViewModelBase<IDialogView>, IDisposable

02.{

03. private readonly GeotechLogContext context;

04.

05. public ObservableCollection<CityCountyState> CitiesCountiesStates { get; set; }

06. private string _SelectedCityCountyState;

07. public string SelectedCityCountyState

08. {

09. get

10. {

11. return this._SelectedCityCountyState;

12. }

13. set

14. {

15. // This doesn't work, but it's what I want to do in concept.

16. // Value is always a string that equals the object type

17. //

18. // CityCountyState x = (CityCountyState) value;

19. // this._SelectedCityCountyState = x.City + "," + x.County + "," + x.State;

20. this._SelectedCityCountyState = value;

21. }

22. }

23.

24. public AddEditViewModel : base( new AddEditWindow() )

25. {

26. this.context = new GeotechLogContext();

27. this.CitiesCountiesStates = new ObservableCollection<CityCountyState>

28. (this.context.CityCountyStates.ToList<CityCountyState>() );

29. }

30.}

The problem is obviously at line 27/28, but I don't know how to do it.

ComboBox

answered on 22 Aug 2014

2 answers

138 views

ID for aggregate cell

Supposingly I would like to bind ID to each of the aggregate cell and retreive it for later usage using View Model, how could it be done.

I understand that there are row group description, column group description and aggregate description to bind property directly,
but i couldn't find ways to bind id to aggregate cell and ways to retrieve it

PivotGrid

answered on 22 Aug 2014

3 answers

136 views

Problem with Controls on RadDocument

Hello

We have strange behavior on Twinhead Durabook T7M hardware (http://goldrushtechnology.com.au/Products/tabid/57/ProdID/2825/Default.aspx) OS: Microsoft Windows 7 32 bit.

When we try to activate the edit controls (f.e. RadComboBox) via the touch pen, they do not become active. Controls are provided by InlineUIContainer on the object RadDocument.

The result is that data can not be replaced via the touch pen. Edit controls have focus only for a fraction of a second, and then focus is lost.

When working with mouse there was no such problem. Installing other drivers for the touch pen did not help.

Problem occurs only for objects placed on the object RadDocument.

Version of Telerik software is 2013 Q2.

Best regards

Daniel Gontarek

General Discussions

answered on 22 Aug 2014

1 answer

381 views

Best Practices: Removing Columns from Grid

I have been using Persistence Framework to save the state of RadGridViews. The RadGridViews have a column chooser which enables the user to change the visible columns (IsVisible=true/false). The WPF program saves the state of grids on exit, and loads them when the program starts. This works very well.

However, recently, as part of an update to the software, I had to remove a column definition from the XAML and the Data Model. I noticed that when the program was loaded again, the column still appears (because I had chosen it in my grid) but the values are all blank.

My question is:
Are there any best practices for using the Persistence Framework with new releases of my software? For example, a way to force an update/automatically remove the persisted data for a particular grid that changes?

PersistenceFramework

answered on 22 Aug 2014

2 answers

171 views

Adding text to row/column header intersection

Supposingly I have pivot grid like this

Text here | Monday Tuesday Wednesday Thursday Friday
Employee 1 |
Employee 2 |
Employee 3 |

I would like to input text in the text here column, how is it possible to do this for pivot grid.
I couldn't find any documentation on it, maybe i just miss out something pretty simple.

PivotGrid

answered on 22 Aug 2014

2 answers

240 views

Display dictionary in RadGridView

Hello,

Here is my case:
I'm working in MVVM.

In my ViewModel I have a list of object like this one :

public class MyObject
{
    public string Name { get; set; }

    public Dictionary<string,bool> Options
    {
      get;
      set;
    }
}

In my View I want to bind my datagrid to a the list of MyObject and have a display looks like :
Name                      | Option1 | Option2 | Option3 | ...
Object1Name          | true       |false        |true
Object2Name          | true       |true         |true
...

The bool should be a checkBox

The string is well displayed but I dont know how display the Dictionary.
I hope someone can help me with this issue.

Thanks,

Eric.

PS : Sorry for the faults but English is not my mother tongue.

GridView

answered on 22 Aug 2014

3 answers

249 views

How to pass value from datepicker when editing certain entry in a gridview?

How to pass value from datepicker when editing a existing entry in a gridview. For instance I have a column name ExpirationMonth with a cell data of AUG, and I want that to pass in a DatePicker Input, instead of seeing the watermark "Enter date". See the first Image.

The first image when editing a certain entry in a gridview, Aug does not show up in the ExpirationMonth, 2014 does not show up in Expiration Year.

Also when I add an entry still the same even it has a default value, set as

//for ExpirationMonth

DateTime.Now.ToString("MMM");

//for Expiration Year

DateTime.Now.ToString("yyyy");

But when I select a month for ExpirationMonth, month I selected appears in the DatePicker input. See the second Image.

What I did to show month and year in the Datepicker Input, here is the code snippet:

public CreditCardWindow()

{

InitializeComponent();

CultureInfo cultureInfo = new CultureInfo("en-US");

DateTimeFormatInfo dateTimeFormatInfo = new DateTimeFormatInfo();

dateTimeFormatInfo.ShortDatePattern = "MMMM";

cultureInfo.DateTimeFormat = dateTimeFormatInfo;

dteExpirationMonth.Culture = cultureInfo;

string dteMonth = dteExpirationMonth.SelectedValue.ToString();

dteMonth.ToUpper();

CultureInfo cultureInfo2 = new CultureInfo("en-US");

DateTimeFormatInfo dateTimeFormatInfo2 = new DateTimeFormatInfo();

dateTimeFormatInfo2.ShortDatePattern = "yyyy";

cultureInfo2.DateTimeFormat = dateTimeFormatInfo2;

dteExpirationYear.Culture = cultureInfo2;

}

Regards,
Robert Peter Mansion

DatePicker

answered on 22 Aug 2014

1 answer

156 views

scroll item into view

Hello, i still evaluating Telerik gantt. I have made me a sample project in mvvm and i add some gantttasks with sample
data. Now i want to use the ScrollingService.ScrollIntoView to item function but how can i access it from viewmodel?
I also using telerik viewmodelbase for the commands in my viewmodel. Can you please give me a hint?

Regards,
Robert

GanttView

answered on 22 Aug 2014

1 answer

195 views

Pages in the RadDocument

Is there any way that I can get the list of pages a document. Or any another way to work out pages from a document ?

Regards
Anand

RichTextBox

answered on 22 Aug 2014

1 answer

255 views

Telerik.Windows.Controls.DataVisualization, version- 2013.3.1316.45 is not supporting.

I am using telerik RadTreeMap control. It is showing error when we use DLL Telerik.Windows.Controls.DataVisualization, version- 2013.3.1316.45 is not supporting. when I use version - 2013.3.1316.40 then it work fine. But all over in our application we already used the DLL of version 2013.3.1316.45 and we cant use the old version DLL 2013.3.1316.40. So how we can use the DLL version 2013.3.1316.45 In RadTreeMap application, please give the solution as early as possible.

Thanks and regards
Shreejit Nechipurat

TreeMap and PivotMap

answered on 22 Aug 2014