Questions on UI for WPF Forum

2 answers

110 views

Hi,

I have the resources A, B and C. I want to customize the scheduleview that I have every day different count of resources. For example
on monday i have A and B and on tuesday i have A, B and C and on wednesday i have only A.

I have looked at the grouping sample, but have not found a solution that is good for me.
How can i do that? I have add a picture. You see what i mean on thursday "Do".

Thanks
Annett

ScheduleView

answered on 10 Feb 2012

1 answer

109 views

Problem filtering date

When I try to filter my source by a datetime field, I get the default date picker. I enter a date or select from the calendar but my result grid doesn't show the records that correspond with that date. Could it be because the editor is looking at the date only and my underlying value has both date & time? How do I get around this if this is in fact the issue?

DataFilter

answered on 10 Feb 2012

4 answers

120 views

RadDataFilter Annotations drawback

Hi,

I would like to be able to set which fields are available for datafiltering on the RadDataFilter. As i understand, this can be done using annotations. However i find the use of annotations cumbersome. I use the RadDataFilter to filter data in a RadGridView. The RadGridView is boud to a collection in the Viewmodel. Now in order to specify which fields are available for datafiletring, i would have to annotate the public fields of my viewmodel. I think this is a violation of seperation of View and Viewmodel. Moreover, if i have diferent views using the same viewmodel with a RadDataFilter and i wish to have different fields available for filtering in each view, then this cannot be done.

In my honest opnion, which fields can be filtered, and what their caption is in the RadDataFilter should be specified in a collection of the RadDataFilter itself (much as the columns collection in the RadGridView).

If you think i going the wrong way here please let me know.

Kind regards,
Ronald Steenbergen

DataFilter

answered on 10 Feb 2012

1 answer

141 views

DropDownButton with RadContextmenu and keyhandling

Hi,

I am using a DropDownbutton with a RadContextmenu. When using Accesskey on the RibbonView/DropDownbutton/RadContextmenu. De access keys don't show on the submenu of the RadContextmenu. A made a sample to demonstrate this:

<Window x:Class="WpfRibbonMenuKeys.MainWindow"

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

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

Title="MainWindow" Height="350" Width="525" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">

<Grid>

<telerik:RadRibbonView Name="radRibbonView1" VerticalAlignment="Top" telerik:KeyTipService.IsKeyTipsEnabled="True">

<telerik:RadRibbonTab Header="RibbonTab" telerik:KeyTipService.AccessText="H">

<telerik:RadRibbonGroup Header="SomeGroup" telerik:ScreenTip.Title="SomeGroup" DialogLauncherVisibility="Collapsed" >

<telerik:RadRibbonDropDownButton Text="DropDown"

Size="Large"

telerik:KeyTipService.AccessText="S">

<telerik:RadRibbonDropDownButton.DropDownContent>

<telerik:RadContextMenu >

<telerik:RadMenuItem Header="Test1" telerik:KeyTipService.AccessText="1"/>

<telerik:RadMenuItem Header="Test2" telerik:KeyTipService.AccessText="2">

<telerik:RadMenuItem Header="Test2.1" telerik:KeyTipService.AccessText="21"/>

<telerik:RadMenuItem Header="Test2.2" telerik:KeyTipService.AccessText="22"/>

<telerik:RadMenuItem Header="Test2.3" telerik:KeyTipService.AccessText="23"/>

</telerik:RadMenuItem>

<telerik:RadMenuItem Header="Test3" telerik:KeyTipService.AccessText="3"/>

</telerik:RadContextMenu>

</telerik:RadRibbonDropDownButton.DropDownContent>

</telerik:RadRibbonDropDownButton>

</telerik:RadRibbonGroup>

</telerik:RadRibbonTab>

</telerik:RadRibbonView>

</Grid>

</Window>

The menuitems Test2.1, Test 2.2 and Test 2.3 don't show access keys. Also when having used access keys, it is not possible to use the arrow keys to navigate through the contextmenu. So when using Alt-H-S-2, in the sample, the submenu is opened, but further keyhandling is not respected.

Regards,
Ronald

RibbonView and RibbonWindow

answered on 10 Feb 2012

0 answers

165 views

Disable GridViewDataColumn content placed in Celltemplate

Hi Team,
How I will diable a control placed in GridViewDataColumn cell template programmatically so that content inside CellTemplate become disable.
I need all this functionality when gridview render.

when i use GridViewColumn.IsEnabled= false; It doesn't disable button placed inside DataTemplate.

<telerik:GridViewDataColumn x:Name="clmDelete" Width="30" Header="" HeaderTextAlignment="Center" >

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<my1:Button x:Name="btnDelete" BorderThickness="0" Background="White"

Click="btnDelete_Click" HorizontalAlignment="Left" Grid.Column="0" Width="20" Height="20">

<Image Source="/UI.SmartClient;component/~or83E_files/delete16.ico" Width="Auto" />

</my1:Button>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn >

foreach (Telerik.Windows.Controls.GridViewColumn column in gv.Columns)

{

       column.isEnabled=false;  

}

GridView

asked on 10 Feb 2012

1 answer

88 views

Schedule appointments by dates only

I there a way to only allow the scheduleView to display by date, ie don't show time slots on the scheduler? All views should only display by date, ie no time slots

ScheduleView

answered on 10 Feb 2012

1 answer

64 views

Grid data clears on column sort

Hi,

I have a grid with all default settings related with Sorting.
grid's ItemSource property is set to custom List<MyCalss> at run time.
But when i click on column's header for sorting it clears grid data.

Thanks,
Bala

GridView

answered on 10 Feb 2012

2 answers

135 views

Bugs in Aggregate Functions when RadGridView is bound to a Datatable

I am using a RadGridView whose ItemsSource is bound to a DataTable.
The reason for using DataTable is because the columns have to be generated dynamically based on user's selection.
I've added Aggregate Functions to each columns and recalculate them when the data source changes.
The RadGridView throws exceptions on certain conditions.

I've attached a sample application that reproduces the error.
the application is contrived from the original application to include only the necessary part.
(The original application uses MVVM pattern, and the recalculation of aggregates happens when the ItemsSource in the ViewModel changes.)
there are 2 different errors that I've encountered so far.

here are the steps to reproduce the error.
Error A
1. set the 'number of data columns' at the top right corner to 2(default), click the 'Load' button 3 times.
2. at the 3rd click, Telerik.Windows.Controls.GridView.GridViewFooterCell.AggregateResults_CollectionChanged throws exception.

Error B
1. set 'Add Count Function to Time column' to true, 'number of data columns' to 2, then click the 'Load' button
2. set 'number of data columns' to 1, then click the 'Load' button twice.
3. at the 2nd click of Step 2, RadGridView.CalculateAggregates() throws exception.

hope you look into this error,
and if you have a better solution on what I'm trying to achieve(dynamic column generation, calculate aggregates),
please do suggest.

Thanks.

I've discovered that you can't attach solution files in this forum, so I'll put the code below.

Main.xaml

<Window x:Class="RadGridViewAggregateFunctionTest.MainView"

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

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

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

Title="MainWindow" Height="350" Width="600">

<Grid x:Name="grid">

<Grid.RowDefinitions>

<RowDefinition Height="auto"/>

<RowDefinition />

</Grid.RowDefinitions>

<StackPanel Orientation="Horizontal">

<TextBlock Text="number of data columns : " VerticalAlignment="Center"/>

<telerik:RadNumericUpDown x:Name="radNumericUpDown" IsInteger="True" ValueChanged="radNumericUpDown_ValueChanged"

Value="2"/>

<CheckBox Content="Add Count Function at Time column" VerticalAlignment="Center" Margin="20,0,0,0" Checked="CheckBox_Checked" />

<Button x:Name="LoadButton" Grid.Row="0" Width="100"

Content="Load"

Margin="20,0,0,0" Click="LoadButton_Click"

/>

</StackPanel>

<telerik:RadGridView x:Name="radGridView" Grid.Row="1" ItemsSource="{Binding}"

ShowColumnFooters="True" ShowGroupPanel="False">

</telerik:RadGridView>

</Grid>

</Window>

Main.xaml.cs

using System;

using System.Linq;

using System.Data;

using System.Windows;

using Telerik.Windows.Controls;

using Telerik.Windows.Data;

using System.IO;

using System.Windows.Controls;

namespace RadGridViewAggregateFunctionTest

{

public partial class MainView : Window

{

Random random = new Random();

private const int TIME_COLUMN_INDEX = 0;

int numberOfColumns = 0;

bool shouldAddCountFunctionAtTimeColumn = false;

public MainView()

{

InitializeComponent();

}

private void LoadButton_Click(object sender, RoutedEventArgs e)

{

radGridView.DataContext = GenerateTable();

AddAggregateFunctions(radGridView);

}

private void AddAggregateFunctions(RadGridView gridView)

{

foreach (var column in gridView.Columns)

{

if (column.DisplayIndex == TIME_COLUMN_INDEX)

{

if (shouldAddCountFunctionAtTimeColumn)

{

CountFunction countFunction = new CountFunction();

countFunction.Caption = "Count : ";

column.AggregateFunctions.Add(countFunction);

}

continue;

}

MinFunction minFunction = new MinFunction();

minFunction.Caption = "Min : ";

column.AggregateFunctions.Add(minFunction);

MaxFunction maxFunction = new MaxFunction();

maxFunction.Caption = "Max : ";

column.AggregateFunctions.Add(maxFunction);

AverageFunction averageFunction = new AverageFunction();

averageFunction.Caption = "Average : ";

column.AggregateFunctions.Add(averageFunction);

}

gridView.CalculateAggregates();

}

private DataTable GenerateTable()

{

DataTable table = new DataTable("My Table");

GenerateColumns(table);

GenerateRows(table);

return table;

}

private void GenerateColumns(DataTable table)

{

DataColumn column = new DataColumn("Time", typeof(DateTime));

table.Columns.Add(column);

for (int i = 0; i < numberOfColumns; i++)

{

string columnName = Path.GetRandomFileName().Substring(0, 4);

column = new DataColumn(columnName, typeof(float));

table.Columns.Add(column);

}

private void GenerateRows(DataTable table)

{

DataRow row;

for (int i = 0; i < 20; i++)

{

row = table.NewRow();

row["Time"] = DateTime.Now.AddSeconds(i);

foreach (DataColumn column in table.Columns)

{

if (column.ColumnName == "Time")

{

continue;

}

row[column.ColumnName] = (float)random.NextDouble() * 50;

}

table.Rows.Add(row);

}

private void radNumericUpDown_ValueChanged(object sender, RadRangeBaseValueChangedEventArgs e)

{

Int32.TryParse(radNumericUpDown.Value.ToString(), out numberOfColumns);

}

private void CheckBox_Checked(object sender, RoutedEventArgs e)

{

shouldAddCountFunctionAtTimeColumn = ((CheckBox)sender).IsChecked.Value;

}

GridView

answered on 10 Feb 2012

2 answers

165 views

Telerik WPF Controls not visible on UI

We are facing a problem with a WPF application which is excessively using Telerik Controls. One of our customers is not able to see any Telerik UI controls in the application.

Any ideas on this?

General Discussions

answered on 09 Feb 2012

6 answers

281 views

RadWindow.Alert does not have keyboard focus when shown

I am using RadWindows in place of MessageBoxes in my application. However, the RadWindow.Alert windows activated when they are shown. In other words when they are shown I assume that I can press the Enter key and close them but this is not the case. However if I click on the window and then press the Enter key the window is closed.

The RadWindow.Prompt does not seem to have this same issue however I am not setting any property specially on either.

I have tried using the Opened property to set focus on the RadWindow and the RadAlert but that shows an undesirable adorner around the element. I would be fine with doing this on the button however it does not seem to appear in the visual tree. There also appears to be no Activate method for the RadWindow nor is there a ShowActivated property. I'm out of options at this point. Is this a defect that should be logged? Please advise.

Window

answered on 09 Feb 2012