Questions on UI for WPF Forum

0 answers

32 views

This bug exist in multiple examples from demo application(Appearance/Columns, Scrolling, Date Formatting, and for Commands using ctrl for multi selection). If you move to the bottom of the grid from vertical scrollbar and delete one or multiple items from the bottom, on the top of the grid white spaces appear. I’m using RadControls for WPF Q1 2011 SP1 and we are obligated by the client to use this telerik version so if this was fixed in future releases please provide me a workaround solution.

Best regards,

Cotutiu Lucian.

GridView

asked on 09 Aug 2012

1 answer

44 views

PreviewDragEnded will not cancel

Hi all,

I am having an Issue with the RadTreeView. I am dragging items from one treeview to another, but inside the PreviewDragEnded method setting e.Handled=true does not stop the drag. I also see that the default drag/drop behavior is still active.

Any ideas?

Cheers,
Brandon

TreeView

answered on 09 Aug 2012

5 answers

178 views

Load data after filter activate

Hi,
I have a radDataFilter and radGridView. On a first place data is not loaded. I want after user put a some filter ( example: username start with: sa) to load data from the server based on the filter condition and show it on the grid.

I not see how to do this. In FilterDescriptors_ItemChanged event i capture what user ask to filter, send a request to load a data but it not show on the grid.

Please advise more better way to do this.

Best regards,
Saykor

DataFilter

answered on 09 Aug 2012

2 answers

320 views

How can I manually update Grouped Aggregates?

I currently have a RadGridView that is bound to a collection of objects. One of those objects contains a property that is calculated based on a user-supplied value, so whenever the user changes the value, the value in every row changes as well.

I am able to manually update the Footer Aggregate using .CalculateAggregates(), however if the Grid is grouped, this does not update the aggregates that are located in the group totals.

How can I make the RadGridView re-calculate the aggregates in the grouped records? The relevant bits of code are below

<TextBox Text="{Binding SalePercent}" />



<

telerik:RadGridView x:Name="MyGrid" DataContextChanged="MyGrid_DataContextChanged"

ItemsSource="{Binding MyObservableCollection}" ShowColumnFooters="True">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Price, StringFormat=N2}" Header="Price">

<telerik:GridViewDataColumn.AggregateFunctions>

<telerik:SumFunction Caption="Price: " ResultFormatString="{}{0:C}" />

</telerik:GridViewDataColumn.AggregateFunctions>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn DataMemberBinding="{Binding SalePrice, StringFormat=N2}" Header="Sale Price">

<telerik:GridViewDataColumn.AggregateFunctions>

<telerik:SumFunction Caption="Sale Price: " ResultFormatString="{}{0:C}" />

</telerik:GridViewDataColumn.AggregateFunctions>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>



private

void MyGrid_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)

{

MyViewModel vm = MyGrid.DataContext as MyViewModel;

if (vm != null)

vm.PropertyChanged += MyViewModel_PropertyChanged;

MyGrid.DataContextChanged -= MyGrid_DataContextChanged;

}

void MyViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e)

{

if (e.PropertyName == "SalePercent")

MyGrid.CalculateAggregates();

}

void MyViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
    switch (e.PropertyName)
    {
        case "SalePercent":
            foreach (var item in MyObservableCollection)
                item.SalePrice = item.Price * SalePercent;
            break;
    }
}

GridView

answered on 09 Aug 2012

4 answers

282 views

Drag and drop - Peview and tooltip content

Hi,

I'm using the drag and drop functionality of the RadTreeView, with a hierarchical list of transportation rides with multiple addresses.
I've managed to add some logic to make sure no rides can be added to addresses and stuff like that, using the existing handlers:

TreeviewMonday.AddHandler(RadDragAndDropManager.DropQueryEvent, new EventHandler<DragDropQueryEventArgs>(OnDropQuery), true);

I do, however, have 2 problems/questions when using the drag and drop between tree views:

1. The preview, when dragging, is shown but stays empty.
2. How can I change the tooltip that is shown when dropping is possible? I would like to change the language of the text and add custom text to it.

(these problems are shown in the screenshot in attachment)

Hope someone can help! Thanks in advance.

Best regards,
Pieter Jan

DragAndDrop

answered on 09 Aug 2012

1 answer

101 views

Sampling for BarSeries ChartView

Hello,

I read about the sampling for radchart. Is this available for chartview for a barseries? If so, how would I go about using it?

Thanks,
Eric

ChartView

answered on 09 Aug 2012

19 answers

196 views

Printing

I need to print my datagrids. I looked to WPF Control Examples and found appropriate one. However it prints data in such a way that first column overlaps itself.

I have attached sample file. This file comes right from Telerik Examples.

I tried it with XPS printer and PDF Creator printer and effects where the same.

How can I print the whole datagrid?

GridView

answered on 09 Aug 2012

1 answer

160 views

Adding panes and features to the Executive Dashboard

Hi,

I have a small project wherein the Executive Dashboard fits the bill. I'd probably need to overhaul the database and edit the queries in the service class to adjust accordingly to my changes, but overall the changes I need are, and of which I'm hoping to reach out to you guys for answers to:

Instead of displaying amounts and figures for sales and revenues, I need it to display hours instead (because instead of sales data I need it to display utilization figures). Is my assumption correct that I just indeed need to edit the queries on the service class with the new tables and columns that I'll add to the included database file?
I'll need to add a pane to the left of the dashboard (the exact same pane that's there in the Sales Dashboard) to have a list of people. Each time a user selects a person from the list the data updates to be specific only to that person. To be completely honest I've got limited knowledge with customizing WPF and unfortunately have a very limited amount of time to deliver this. Is there a white paper or article specific to the Executive Dashboard to guide me though? Or was there a similar implementation through the discussions here that did so? (did a search but can't seem to find one)
Aside from the pane, I'd also need to add functionality to Add, Edit, and Delete records per person through the app. As far as I'm aware the Executive Dashboard doesn't have that functionality and was thinking of adding it in the Information pane that expands when clicked (the one that shows SQL Azure etc.). I'd just need to call another XAML page containing the functionalities to add and edit right?
If I'd like to create an installer for whatever will be finalized, what DLL's will I need to package with the installer and how difficult will it be to setup? Or does Telerik also have its own compiler application for this need?

We currently have a DevCraft license and thought it'd be best not to reinvent the wheel in this rather little pet project, and there's no resource at the moment here who currenlty have any background to WPF. So any thoughts would be highly appreciated! Thanks!

General Discussions

answered on 09 Aug 2012

1 answer

244 views

How to Find Table in RichTextbox

Sir,

I have a table in a richtextbox. I want to insert rows and columns at runtime to that table. Is it possible to add rows and columns to an existing table.

1- Find that table
2- Insert Rows/Columns to this table

Regards
M. Rizwan

RichTextBox

answered on 09 Aug 2012

2 answers

143 views

RadGridView Override HighLight / Selection

Hi!

I try to override the GridViewRow default style
I read all topics but redefine the template in DataRowStyle degrades performance on scrolling..
What's the good solution to hide de HighLight and the Selection background ??

It's my style (binding object contains the color property) :

GridView

answered on 09 Aug 2012