Questions on UI for WPF Forum

1 answer

73 views

Hello

I believe I am seeing the the same issue brought up here http://www.telerik.com/community/forums/wpf/window/radwindow-binding-error.aspx - is there any workaround or fix for this? We are in the trial phase using version 2011.3.1220.40.

Thank you,
Patrick Brown

Window

answered on 12 Mar 2012

4 answers

206 views

GridViewCheckBoxColumn from 2012-Q1 does not work correctly

Hello,

I have an old project containing a GridView with a GridViewCheckBoxColumn binded to a bool type data property. With 2011-Q3 the application works. The checkbox state is set accordingly to the property value.

Yesterday I have installed 2012-Q1 and I have noted that this column does not work anymore. Although the data property has a value of "true", the checkbox is unchecked. If I try to manually check the checkbox, when the cell loses focus the checkbox is automatically unchecked.

Also, when the cell loses focus and the checkbox is checked, in the Output window the following message is recorded:

"A first chance exception of type 'System.ArgumentException' occurred in System.ComponentModel.DataAnnotations.dll"

Perhaps you can take a look into this problem.

Thank you.

<telerik:RadGridView Name="gridFields" Grid.Row="7" Grid.ColumnSpan="4" ItemsSource="{Binding Path=FieldsConfig}" CanUserReorderColumns="False" AutoGenerateColumns="False" ShowInsertRow="True" RowEditEnded="gridFields_RowEditEnded" AddingNewDataItem="gridFields_AddingNewDataItem" ShowGroupPanel="False" CellValidating="gridFields_CellValidating" Deleting="gridFields_Deleting" IsFilteringAllowed="False" CanUserFreezeColumns="False" CanUserSortColumns="True">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="Nume camp" UniqueName="Name" DataMemberBinding="{Binding Path=Name}" />

<telerik:GridViewDataColumn Header="Col.CSV" UniqueName="CSVColumn" DataMemberBinding="{Binding Path=CSVColumn}" TextAlignment="Right" />

<telerik:GridViewDataColumn Header="Camp formular web" UniqueName="WebFormFieldName" DataMemberBinding="{Binding Path=FormDataFieldName}" />

<telerik:GridViewCheckBoxColumn Header="Specifica fis.continut" UniqueName="ContainsFilename" DataMemberBinding="{Binding Path=ContainsFilename}" AutoSelectOnEdit="True" EditTriggers="CellClick" />

<telerik:GridViewDataColumn Header="Valoare implicita" UniqueName="DefaultValue" DataMemberBinding="{Binding Path=DefaultValue}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

public static readonly DependencyProperty ContainsFilenameProperty = DependencyProperty.Register("ContainsFilename", typeof(bool), typeof(FieldConfigData),

new FrameworkPropertyMetadata(false));

[XmlIgnore]

public bool ContainsFilename

{

get { return (bool)GetValue(ContainsFilenameProperty); }

set { SetValue(ContainsFilenameProperty, value); }

}

[XmlAttribute(AttributeName = "is_content_filename")]

public byte IsContentFilename

{

get { return ContainsFilename ? (byte)1 : (byte)0; }

set { ContainsFilename = ((byte)value == 1); }

}

GridView

answered on 12 Mar 2012

1 answer

62 views

Create custom filter to select quantity of matching items

Hi,

I want to create a custom filter to select a quantity of matching items. That is, the user has a list of 1,000 items but wants the first (say) 500 that match. I want to use this to allow the user to allocate work items to team members.

I can see how to filter individual items but can I use a custom filter to filter how many items are displayed?

Thx

Rob

DataFilter

answered on 12 Mar 2012

2 answers

58 views

Order the columns

Hello

I added columns in code and try to order the columns by using

Display Index it not works.

Is there way to control the index of the columns in the grid?

Best regards

Ehud

GridView

answered on 12 Mar 2012

3 answers

75 views

WPF or just SL4?

Hi,

I confused. RadDataFilter is listed under RadControls for WPF but on the "Getting Started" page (http://www.telerik.com/help/wpf/datafilter-getting-started.html) I see:

RadDataFilter is available for Silverlight 4 only.

Is this a mistake?

Thx

Rob

DataFilter

answered on 12 Mar 2012

1 answer

105 views

GridViewMaskedTextBoxColumn's Mask as a Style Property

Hi,

I am working on an audit application where I use lot of GridViews. There are columns such as SSN, Date, accountnumbers ..etc which I use in a lot of grids. Every column is initially in readonly mode has edittrigger set to F2. For SSN I am using GridViewMaskedTextBoxColumn and defined it as below

<telerikGrid:GridViewMaskedTextBoxColumn DataMemberBinding="{Binding SSN, Mode=TwoWay,

Converter={StaticResource ssnConverter}}" Header="SSN" EditTriggers="F2" Mask="###-##-####"
MaskType="Standard" />

When I write a Style as below :

<Style x:Key="SSN_GridViewColumn" TargetType="{x:Type telerik:GridViewMaskedTextBoxColumn}">

<Setter Property="Mask" Value="###-##-####"/>

<Setter Property="Header" Value="SSN"/>

<Setter Property="MaskType" Value="Standard"/>

<Setter Property="EditTriggers" Value="F2"/>

</Style>

and try to apply them to all the SSN columns in my grids, I get runtime errors regarding the Properties "Mask" and "MaskType" properties in the Style. They only work when I add them explicitly in the Column defiition rather than in the style. Is this an Issue with MaskedTextBoxColum

Is there any other alternative to this?

GridView

answered on 12 Mar 2012

6 answers

170 views

chartlegend scrollbar

How can be scrollbar both horizontal and vertical in chart legend.

Chart

answered on 12 Mar 2012

3 answers

169 views

Problem with grouping and aggregate functions.

Hello. I have such problem: when I try to add aggregate functions for group, that was created from user interface(user drags column headers to grouping panel), i cant use foreach for groups collection, that have more than one element. I get exception, that talk my group collection has changed. But i changed only aggregate functions collection. Code demonstrated such behaviour is below:

foreach (var group in AssociatedObject.GroupDescriptors)

{

var localGroup = (group as GroupDescriptor);

AggregateFunctionCollection aggregateFunctions = localGroup == null ?

(@group as ColumnGroupDescriptor).Column.AggregateFunctions :

localGroup.AggregateFunctions;

aggregateFunctions.Clear();

aggregateFunctions.Add(new CountFunction { Caption = GroupAggregatesName });

}

What is the way to solve this problem? Please help.

GridView

answered on 11 Mar 2012

3 answers

87 views

Grid Column Title getting Cut off on extending column width

Hi,

I am facing an issue with the WPF RadGrid, that when i extend a column width, the column title gets cut off. Please refer attached screenshot. Could anyone help me with this please?

Thanks.

GridView

answered on 10 Mar 2012

0 answers

115 views

Mantaining the expand/collapse state of the control

Hello,

We are working with Telerik TreeListView control to display hierarchical data. We have a tree with upto 3 levels deep and unable to to maintain the expanded/collapsed state everytime we do a rebind. The tree collapses every-time we save the data and rebind the data back to the control. We have looked at options of manually storing the state (expanded/collapsed nodes) on IsExpandedChanged() and expanding the nodes manually using treeListView.ExpandHierarchyItem(item) after rebind. This doesn’t seem to work as expected.

We also tried the MVVM approach as suggested in the demo but this works only for the first time.

This is an urgent request and any help on this at the earliest would be greatly appriciated.

Thanks,
Mahesh

TreeListView

asked on 10 Mar 2012