Questions on UI for WinForms Forum

2 answers

116 views

How to create group in radGridView

Hello room!

I have send 1 image (grid_group). I want create 1 that radGridView.

Help me!

Thank you All!

GridView

answered on 05 Oct 2010

6 answers

233 views

[Solved] Hierarchy with

*edit* Forgot to title the post properly! Should be "Hierarchy with multiple child datasources" Feel free to correct this admins!

I've got a code defined hierarchy to work fine in C#, with a RadGridView with a datasource etc and then defined a template with a relation and a datasource for the child rows and assigned these to the RadGridView.

This works fine and the '+' expands and shows the child rows.

What I want to do though is have the expanded child row be from a different datasource depending on some value in the parent. Ie what expands has different columns depending on the parent row.

I can't seem to specify more than one datasource for the childrows.
What I want to see is:

AAA BBB CCC    (Parent row)
--d e f                                    (Expanded child row)
AAA2 BBB2 CCC2                 (Parent row)
--g h i                                     (Expanded child, different columns/datasource to the other child row)

The parent rows have the same columns/datasource.
The child rows have different columns/datasource.

Is this possible and can both different child rows be expanded at the same time?

GridView

answered on 05 Oct 2010

4 answers

186 views

GridView hierarchy questions

We're currently evaluating your grid (which is great by the way) and I have a few questions regarding hierarchies:

1. Is it possible to remove (or at least reduce the size of) the border around child grids? The default one has a thick blue border which is eating up a lot of screen space.

2. Rows in the grid are typically highlighted when you move the mouse over them, but the last row hovered over in a child grid stays highlighted when you move the mouse down and out of the child grid. It's not such a big issue, but if that row has the background colour changed for business reasons, the highlight remains which hides the background colour. If you move the mouse up and over the child column headers first the highlight is removed as normal. Is this a bug?

3. Am I missing something or is there no way to bind hierarchies of business objects with self contained collections? For example, I have a collection property on my view model called Customers. This model works great in your WPF grid, but for the WinForms case I had to create two separate collections in the view model for customers and orders, add a CustomerKey property to the Order class and then specify a GridViewRelation between them.

public class Customer

{

public int CustomerKey { get; set; }

public string Name { get; set; }

public IList<Order> Orders { get; set; }

}

public class Order

{

public int OrderKey { get; set; }

public decimal Price { get; set; }

}

GridView

answered on 05 Oct 2010

4 answers

365 views

Define different column types in single column

Is it possible to define different GridView column type based on column value at row loading event at runtime?
I like to be able to define calendar, combo, or text in the same column.

For example, I have following records:
Col1        Col2            Col3
Daily        10/1/2010    Check my email
Weekly    Monday        Check to see if weekly backup worked
Monthly    1                  Check to see if monthly order came thru

I like to be able to change cell column type on Col2 based on value in Col1.
So, in this case,
Col2 on the 1st row has GridViewDataTimeColumn where a user can select date from calendar.
Col2 on the 2nd row has combo box with monday, tuesday, wednesday, etc...
Col3 on the 3rd row has free text where a user can enter numerical number 1 thru 31

So, Col1 is defined as combo box with Daily, Weekly, Monthly, etc...

Is this possible to do this using your radgridview?

Thanks.

Harry Idachi

GridView

answered on 05 Oct 2010

3 answers

364 views

[Solved] RadGrid Summary Row FormatString

Hi Guys,

The column format is set as {0:c},

From the designer, I add a summary row, and then a GridViewSummaryItem. When I set the FormatString property of this summary item for that particular column as {0,c}, I am getting an exception.

The actual DB column is a MySQL decimal (15,2) type column.

I can get around this by using the ViewCellFormattingEvent programmatically. But just wanted to know whether I am doing something wrong, or is this a bug.

Thanks.

GridView

answered on 05 Oct 2010

0 answers

170 views

Add GridViewComboBoxColumn to exisiting column

Please, remove this post. I moved it to Gridview forum. This was wrong place. Sorry!

Hi!
I am trying to implement GridViewComboBoxColumn on gridview for existing"DEPARTMENT_ID"
colum.
I tried below and it works fine, but it is adding another column on the gridview instead of replacing existing "DEPARTMENT_ID" column.
1. What should I change?
2. What property will remove a scroll bar on GridViewComboBoxColumn?

With Me.rgvEmployee

.Columns("EMP_ID").HeaderText = "EMP ID"

Dim deptComboboxColumn As GridViewComboBoxColumn = New GridViewComboBoxColumn

With deptComboboxColumn

.UniqueName = "DeptColumn"

.HeaderText = "Dept"

.DataSource = From q In db.MST_DEPARTMENT _

Select q.DEPARTMENT_ID, q.DEPARTMENT_NM

.ValueMember = "DEPARTMENT_ID"

.DisplayMember = "DEPARTMENT_NM"

.FieldName = "DEPARTMENT_ID"

.Width = 200

End With

Me.rgvEmployee.Columns.Add(deptComboboxColumn)

End With

ComboBox and ListBox (obsolete as of Q2 2010)

asked on 05 Oct 2010

1 answer

373 views

[Solved] Tristate CheckBox column

Hi,

I want to create a checkbox column in my grid which will be databound to a nullable boolean property in the data source. How do I go about doing this? I don't see an IsThreeState property on GridViewCheckBoxColumn or RadCheckBoxEditor.

Thanks!

GridView

answered on 04 Oct 2010

8 answers

459 views

[Solved] Sub-totals and Grand-Total

Hi have been looking around for quite some time now and I cannot find exactly what I want.

I have a GridView (Q2 2010), I group some rows programmatically.

Now I need to display sub-totals and the grand-total for 3 columns. I have only been able to display the 3 sub-totals on different lines.

What is the the correct way of adding sub-totals (based on grouping) for the 3 columns on the same line?

How to add the Grand-total line for those 3 columns?

All this is set programmatically.

GridView

answered on 04 Oct 2010

1 answer

136 views

Install a lastest version

Hi:
I'm developing a application with a version of rad forms telerik from 2009, but I want to install a new version.
My question is: The new version is compatible with all controls of the old version?

Thanks.

General Discussions

answered on 04 Oct 2010

2 answers

225 views

[Solved] Problem with comb box column if data source is List<T>, 2010 Q2 SP2.

Problem with comb box column if data source is List<T>, 2010 Q2 SP2.

Hi

I set (radGridView1.Columns[0] as GridViewComboBoxColumn).DataSource on List<MyObject>.
During moving focus to another cell (after selecting something from combo box) I get exception.
DisplayMemeber and ValueMember are null – but I think it is ok for this case.

Stack trace:

FormatException: Input string was not in a correct format.

at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)

at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)

at System.String.System.IConvertible.ToInt32(IFormatProvider provider)

at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)

at System.ComponentModel.BaseNumberConverter.ConvertTo(ITypeDescriptorContext context, CultureInfo culture, Object value, Type destinationType)

at Telerik.WinControls.UI.RadDataConverter.ParseCore(Object value, Type targetType, Type sourceType, TypeConverter dataTypeConverter, IDataConversionInfoProvider dataColumn, Boolean checkFormattedNullValue)

at Telerik.WinControls.UI.RadDataConverter.Parse(IDataConversionInfoProvider converstionInfoProvider, Object value)

at Telerik.WinControls.UI.GridDataCellElement.set_Value(Object value)

at Telerik.WinControls.UI.GridViewEditManager.EndEditCore(Boolean validate, Boolean cancel)

at Telerik.WinControls.UI.GridViewEditManager.CloseEditor()

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.GridViewEventProcessEntity.ProcessEvent(GridViewEvent gridEvent)

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.BaseGridNavigator.SelectNextColumn()

at Telerik.WinControls.UI.GridRowBehavior.ProcessTabKey(KeyEventArgs keys)

at Telerik.WinControls.UI.GridNewRowBehavior.ProcessTabKey(KeyEventArgs keys)

at Telerik.WinControls.UI.GridRowBehavior.ProcessKey(KeyEventArgs keys)

at Telerik.WinControls.UI.BaseGridBehavior.ProcessKey(KeyEventArgs keys)

at Telerik.WinControls.UI.RadGridView.ProcessDialogKey(Keys keyData)

at System.Windows.Forms.Control.PreProcessMessage(Message& msg)

at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)

at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)

I do not have this problem if I set DataSource to List<string>.

How can I set List< MyObject> as DataSource for comb box column?