Questions on UI for WinForms Forum

1 answer

108 views

Hi!
I have a problem with setting backcolor of child grid's caption.
Screen shows exactly ma problem.
I would like that "SapFieldFilters" look like "SapField". (Different backcolor). I hope my goal is clear. ;)

How to achieve this?

Thanks in advance!

GridView

answered on 18 Sep 2013

3 answers

246 views

Create Word Document with attached Template

Hi

Is it possible to use RichTextBox to achieve the following?

1. Create a new Word Document ("Document 1") from a Word Template
2. Import the contents from another Word Document into "Document 1"
3. Save "Document 1" as a Word 2003 document with the Template correctly attached

It needs to be 2003 as this is for a legacy application.

Thanks
Mark Donne

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 18 Sep 2013

3 answers

174 views

RadItemDragDropManager for touchscreen

Hello everyone,

I have used RadItemDragDropManager class from sample application to achieve drag&drop effect between two ListControls.
If I use mouse on PC, it works perfectly, but it is not working on touchscreen.
I saw, that in many places in RadItemDragDropManager class there are events associated with mouse.
Is there any simple solution for use this/other class to achieve drag&drop between two lists in WinForms applications?

DropDownList

answered on 18 Sep 2013

0 answers

208 views

Scroll Bar get disappear when change the display setting

Hi Experts,

I am using Telerik.Windows.Controls.GridView , version - 2011.3.1220.40.

I am having problem with scroll bar when I change my machine's display setting from 100% to 125%.

Initially scroll bar appears on the screen, but when I scroll down to bottom and try to scroll more (as it has more rows), scroll bar gets disappear.
I have attached screenshot. Also I have attached Grid Control we have used.

here is the grid control I have used-

<telerik:RadGridView x:Name="xyzResultsGridView"

Controls:StyleManager.Theme="Office_Blue"

AutomationProperties.AutomationId="xyzResultsGridView"

AutoGenerateColumns="False"

AutoExpandGroups="True"

CanUserFreezeColumns="False"

AllowDrop="False"

CanUserDeleteRows="False"

ActionOnLostFocus="None"

AreRowDetailsFrozen="True"

CanUserInsertRows="False"

ClipToBounds="True"

IsScrolling="False"

UseLayoutRounding="True"

SelectionMode="Extended"

ClipboardPasteMode="Default"

IsReadOnly="True"

IsFilteringAllowed="False"

VirtualizingStackPanel.IsVirtualizing="True"

VirtualizingStackPanel.VirtualizationMode="Recycling"

MaxWidth="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Grid}}, Path=ActualWidth}"

Focusable="False"

>

<telerik:RadGridView.RowStyle>

<Style TargetType="GridView:GridViewRow">

<Setter Property="Foreground" Value="{Binding Converter={StaticResource RowToColorConverter},ConverterParameter=.}">

</Setter>

<Setter Property="FontWeight" Value="{Binding Converter={StaticResource RowToFontWeightConverter},ConverterParameter=.}">

</Setter>

</Style>

</telerik:RadGridView.RowStyle>

<Navigation:RadContextMenu.ContextMenu>

<Navigation:RadContextMenu x:Name="xyzResultsGridContextMenu" Opened="xyzResultsGridContextMenu_Opened"

ItemClick="xyzResultsGridViewContextMenuItemClick"

ItemContainerStyle="{StaticResource EnableStyle}"

ItemTemplate="{StaticResource MenuItemTemplate}">

</Navigation:RadContextMenu>

</Navigation:RadContextMenu.ContextMenu>

<telerik:RadGridView.GroupHeaderTemplate>

<DataTemplate>

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition/>

</Grid.ColumnDefinitions>

<TextBlock Text ="{Binding GroupDescriptor.Column.Header}" Margin="1,0,0,0" Grid.Column="0" />

<TextBlock Text=": " Margin="1,0,0,0" Grid.Column="1"/>

<TextBlock Text= "{Binding Header}" Margin="1,0,0,0" Grid.Column="2" />

</Grid>

</DataTemplate>

</telerik:RadGridView.GroupHeaderTemplate>

</telerik:RadGridView>

Can you please help me ?
Thanks,
Ritesh

GridView

asked on 17 Sep 2013

3 answers

655 views

Object reference not set to an instance of an object. at Telerik.WinControls.UI.GridViewEditManager.OnPositionChanging

Telerik.WinControls.GridView version 2012.3.1211.20

Hi Everyone,

I am using GridView's RowSourceNeeded to populate child table when [+] is clicked... it works fine when initial load, however when master table gets refreshed by assigning the DataSource to different collection, it throws following error when [+] is clicked to populate child table.
It seems the child table was populated OK, but it still throws the exception anyway.

Any help/suggestions/ideas are appreciated greatly. Thank you.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.WinControls.UI.GridViewEditManager.OnPositionChanging(PositionChangingEventArgs args)
   at Telerik.WinControls.UI.GridViewEditManager.Telerik.WinControls.UI.IGridViewEventListener.PreProcessEvent(GridViewEvent eventData)
   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode)
   at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()
   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.RaiseCurrentChanged(GridViewTemplate template, GridViewRowInfo row, GridViewColumn column, Boolean user)
   at Telerik.WinControls.UI.GridViewRowInfo.OnIsCurrentPropertyChanging(PropertyChangingEventArgsEx args)
   at Telerik.WinControls.UI.GridViewRowInfo.OnPropertyChanging(PropertyChangingEventArgsEx args)
   at Telerik.WinControls.UI.GridViewHierarchyRowInfo.OnPropertyChanging(PropertyChangingEventArgsEx args)
   at Telerik.WinControls.UI.GridViewRowInfo.SetBooleanProperty(String propertyName, Int32 propertyKey, Boolean value)
   at Telerik.WinControls.UI.MasterGridViewTemplate.ChangeCurrentRow(GridViewRowInfo oldRow, GridViewRowInfo row, GridViewTemplate viewTemplate)
   at Telerik.WinControls.UI.MasterGridViewTemplate.SetPositionCore(GridViewRowInfo newRow, GridViewColumn newColumn, GridViewRowInfo oldRow, GridViewColumn oldColumn, Boolean validateRowChange)
   at Telerik.WinControls.UI.MasterGridViewTemplate.SetPosition(GridViewRowInfo row, GridViewColumn column, Boolean validateRowChange)
   at Telerik.WinControls.UI.MasterGridViewTemplate.ProcessCurrentChanged(GridViewEvent eventData)
   at Telerik.WinControls.UI.MasterGridViewTemplate.ProcessEventCore(GridViewEvent eventData)
   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode)
   at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()
   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.RaiseCurrentChanged(GridViewTemplate template, GridViewRowInfo row, GridViewColumn column, Boolean user)
   at Telerik.WinControls.UI.BaseGridNavigator.SelectCore(GridViewRowInfo row, GridViewColumn column)
   at Telerik.WinControls.UI.GridRowBehavior.SelectPositionOnMouseDownLeft(MouseEventArgs e, GridRowElement rowElement, GridCellElement cellElement)
   at Telerik.WinControls.UI.GridRowBehavior.OnMouseDownLeft(MouseEventArgs e)
   at Telerik.WinControls.UI.GridRowBehavior.OnMouseDown(MouseEventArgs e)
   at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDown(MouseEventArgs e)
   at Telerik.WinControls.UI.RadGridView.OnMouseDown(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at Telerik.WinControls.RadControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

GridView

answered on 17 Sep 2013

4 answers

174 views

I' Can't create subGrid

Hello people:

I tried to create my first subird with winforms and I have not gotten.

I created the "radgrid1" and chose the datasource. Good.
Later i created the template and chose the DataSource.
Later i created the relation, parent = grid and select column id; child = template and selected column jwId.

Them, when the next line fire, i get a error "GridViewEventDataProvider can not be applied to bound GridViewTemplate"

this.radGridView1.Templates[0].HierarchyDataProvider = new GridViewEventDataProvider(this.radGridView1.Templates[0])

What it's the problem?

GridView

answered on 17 Sep 2013

2 answers

429 views

GridView CellValidating event fires more than once

Hi Everyone,

I have a problem with CellValidating event.

GridView CellValidating event fires more than once when NewRowEnterKeyMode property sets to RadGridViewNewRowEnterKeyMode.EnterMovesToNextCell.

I have messagebox in CellValidating event to check the value could not be empty.
when I try press enter key to leave cell, CellValidating event fires Twice. While there is a need a time validate. as a result messgebox shown Twice

please pay attention only when

1. NewRowEnterKeyMode sets to RadGridViewNewRowEnterKeyMode.EnterMovesToNextCell
2. Press Enter Key to move next cell ( Tab Key behavior is great)

I am very grateful everyone help me.
Thank You.

GridView

answered on 17 Sep 2013

1 answer

317 views

[Solved] Saving gridview with combobox columns giving null values

Hello Telerik Team,
i have some issues with the comobobox column of radgridview for winforms

here is the below code

                GridViewComboBoxColumn colLithography = new GridViewComboBoxColumn();
                colLithography.DataType = typeof(string);
                colLithography.DataSource = dt; // dt is having only one Column called Name
                colLithography.HeaderText = "Lithography";
                colLithography.ValueMember = "Name";
                colLithography.DisplayMember = "Name";
                colLithography.FieldName = "Name";
                //colLithography.DataType=
                this.rGVPP.Columns.Insert(2, colLithography); // rGVPP is Radgridview

Above code perfectly added the values to the combobox

but now i want to save the gridview data to database,

So in Btn_Save click i am reading sending the gridview values to a query like below, observe the debug at break point which is the code
and in the quick watch window the value is null, throwing exception here

but my grid having values in all the cell, when i try to read the value of a particular cell of combobox column, its giving null value.

Please help me.

GridView

answered on 17 Sep 2013

3 answers

130 views

MiniToolbar in Ribbon Application

Hi ,

We need the MiniToolbar for our application.
Where can we find information about RadRibbonBar and MiniToolbar ?

I hope you will be able to provide the information.

Stefano.

General Discussions

answered on 17 Sep 2013

1 answer

142 views

RadGridView - Custom sorting issue

Hi,

I am using Telerik RadGridView in our project.

This GridView will have dropdown columns.  While doing sorting it sorts based on dropdown list item's Id instead of Display text.

So i am doing custom sorting to sort based on display member. It works fine.

If the record count is huge say for example more than 10,000 application is not responding.

Is there any workaround for this issue ?

Thanks

Balaji

GridView

answered on 16 Sep 2013