Questions on UI for WinForms Forum

6 answers

651 views

Hi
My code to change the back color of all the selected cells is working fine but It can not change the border color of all the selected cells of the grid. What I am doing wrong?

Here is my code:

private void dtgCpr_ViewCellFormatting(object sender, CellFormattingEventArgs e)

{

e.CellElement.DrawBorder = true;

if (e.CellElement.IsSelected)

{

e.CellElement.BorderColor = Color.Red;

e.CellElement.BackColor = Color.SeaShell;

}

Thanks

Regards

GridView

answered on 25 Jan 2011

8 answers

207 views

How to inprove the performance when the cells value change very fast

hi there

I bind the bindinglist<T> to the gridview. when the every custom object's property value change very ofen ,the corresponding cell's value can change also.But it take too much CPU(around 60%).
I have a custom object inherit from INotifyPropertyChanged.
The custom object have three properties, and every property's value change per 50ms.
I add 30 custom objects to the Bindinglist<T>,and bind the list to radGridview.

I use the 2010 q2 version.

GridView

answered on 25 Jan 2011

5 answers

261 views

Image in a command column

Hi,

I've looked at a few examples of this but they don't appear to work. I'm getting an error when actually assigning the image. The error is Exception has been thrown by the target of an invocation.

The code that I'm trying is:

Private Sub rgvItems_CellFormatting(ByVal sender As Object, ByVal e As CellFormattingEventArgs) Handles rgvItems.CellFormatting

If TypeOf e.CellElement.ColumnInfo Is GridViewCommandColumn AndAlso Not (TypeOf e.CellElement.RowElement Is GridTableHeaderRowElement) Then

Dim column As GridViewCommandColumn = DirectCast(e.CellElement.ColumnInfo, GridViewCommandColumn)

If column.Name = "PLButton" Then

Dim element As RadButtonElement = DirectCast(e.CellElement.Children(0), RadButtonElement)

element.DisplayStyle = Telerik.WinControls.DisplayStyle.Image

' This is an example of course

element.Image = ImageList.Images(0)

'e.CellElement.StringAlignment = StringAlignment.Center

'Me.ApplyThemeToElement(element, "ControlDefault")

End If

End Sub

The line where it seems to fail is element.image = imagelist.images(0). The imagelist is an image list surprisingly enough and it has images in it. They are being used elsewhere to populate an image column in the grid view.

Is there anything obvious stands out?

Thanks

GridView

answered on 25 Jan 2011

3 answers

113 views

Deployment Issue

We have included a bunch of Telerik's controls to our windows based application. One of them is Gridview control. While creating a deployment package, we have added all the dlls that are required - one of them is Telerik.Wincontrols.GridView.dll. When we try to install our application on our client's machine, it gives us an error - Unable to load file or reference to Telerik.Wincontrols.Gridview.dll. The dll is physicially present on the machine.
What are we missing here?

GridView

answered on 24 Jan 2011

13 answers

284 views

View Definition for a child template

Hi,
I get a blank template without column headers when I set the viewdefinition for a child template to

ColumnGroupsViewDefinition. When I use the same template on the MasterTemplate, it works fine. The code I use is

GridViewTemplate

gvChildTemplate = new GridViewTemplate();

gvChildTemplate.DataSource = _ds.Tables[1];

CustomizeChildTemplate(gvChildTemplate);

gvChildTemplate.ViewDefinition = _colGroupsView;

radGridView1.Templates.Add(gvChildTemplate);

GridViewRelation relation = new GridViewRelation(radGridView1.MasterTemplate);

relation.ChildTemplate = gvChildTemplate;

relation.RelationName =

"MeasureName";

relation.ParentColumnNames.Add(

"MeasureName");

relation.ChildColumnNames.Add(

"MeasureName");

radGridView1.Relations.Add(relation);

_colGroupsView is set using a different method and I can assure you, it is not null when the viewdefinition is set

Thanks
Deepak

GridView

answered on 24 Jan 2011

6 answers

294 views

XAxis.AxisLabel don't appear and instead a serie item name, appear only numbers.

Hi,
i'm trying to create a SIMPLE CHART that shows a title, legend, XAxis.AxisLabel and a XAxis itens label. XAxis.AxisLabel don't appear and instead a serie item name, appear only numbers. See attachments. What's wrong with the code below? Tks. Lourival.

RadChart1.Series.Clear()

RadChart1.ChartTitle.TextBlock.Text = "My Chart"

Dim chartSeries As ChartSeries = RadChart1.CreateSeries("2009", System.Drawing.Color.RoyalBlue, System.Drawing.Color.LightSteelBlue, ChartSeriesType.Bar)

chartSeries.AddItem(120, "")

chartSeries.AddItem(140, "")

chartSeries.AddItem(35, "")

chartSeries.AddItem(120, "")

chartSeries.AddItem(140, "", System.Drawing.Color.Red)

chartSeries.AddItem(35, "")

chartSeries.AddItem(120, "")

chartSeries.AddItem(140, "")

RadChart1.Series.Add(chartSeries)

chartSeries.Appearance.LabelAppearance.Visible = False

Dim chartSeries2 As ChartSeries = RadChart1.CreateSeries("2010", System.Drawing.Color.DarkBlue, System.Drawing.Color.LightBlue, ChartSeriesType.Bar)

chartSeries2.AddItem(120, "")

chartSeries2.AddItem(140, "")

chartSeries2.AddItem(35, "")

chartSeries2.AddItem(120, "")

chartSeries2.AddItem(140, "")

chartSeries2.AddItem(35, "")

chartSeries2.AddItem(120, "")

chartSeries2.AddItem(140, "")

RadChart1.Series.Add(chartSeries)

chartSeries2.Appearance.LabelAppearance.Visible = False

RadChart1.PlotArea.XAxis.AxisLabel.TextBlock.Text = "Months"

RadChart1.PlotArea.XAxis.AxisLabel.TextBlock.Appearance.TextProperties.Color = System.Drawing.Color.Red

RadChart1.PlotArea.XAxis.AddRange(1, 8, 1)

RadChart1.PlotArea.XAxis(0).TextBlock.Text = "Jan"

RadChart1.PlotArea.XAxis(1).TextBlock.Text = "Fev"

RadChart1.PlotArea.XAxis(2).TextBlock.Text = "Mar"

RadChart1.PlotArea.XAxis(3).TextBlock.Text = "Abr"

RadChart1.PlotArea.XAxis(4).TextBlock.Text = "Mai"

RadChart1.PlotArea.XAxis(5).TextBlock.Text = "Jun"

RadChart1.PlotArea.XAxis(6).TextBlock.Text = "Jul"

RadChart1.PlotArea.XAxis(7).TextBlock.Text = "Ago"

RadChart1.DataBind()

Chart (obsolete as of Q1 2013)

answered on 24 Jan 2011

5 answers

161 views

GridViewDateTimeColumn Dropdown Calendar showing "Footer"

Just a note to everyone out there. We just upgraded to Q1 2010 and suddenly the drop-down calendar on all GridViewDateTimeColumn columns in our RadGridViews started showing a "footer" (displays the current date/time and has "Clear" and "Now" buttons). None of the other similar controls (RadDateTimePicker, etc.) are doing this. This made the UI inconsistent, so I came up with code to hide the "footer" for GridViewDateTime columns:

    
                Private Sub rgvGrid_CellEditorInitialized(ByVal sender As Object, _  
        
                                                          ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) _  
        
                                                          Handles rgvGrid.CellEditorInitialized  
        
                    If TypeOf rgvNotes.CurrentColumn Is GridViewDataColumn Then  
        
                        Select Case DirectCast(rgvNotes.CurrentColumn, GridViewDataColumn).UniqueName  
        
                            Case "SomeColumnName"  
        
                                Dim activeEditor As RadDateTimeEditor = TryCast(rgvNotes.ActiveEditor, RadDateTimeEditor)  
        
                                If activeEditor IsNot Nothing Then  
        
                                    Dim editorElement As RadDateTimeEditorElement _ 
        
                                        = TryCast(activeEditor.EditorElement, RadDateTimeEditorElement)  
        
                                    If editorElement IsNot Nothing Then  
        
                                        Dim dateTimePickerCalendar As RadDateTimePickerCalendar _ 
        
                                            = TryCast(editorElement.GetCurrentBehavior(), RadDateTimePickerCalendar)  
        
                                        If dateTimePickerCalendar IsNot Nothing Then  
        
                                            dateTimePickerCalendar.Calendar.ShowFooter = False 
        
                                        End If  
        
                                    End If  
        
                                End If  
        
                        End Select  
        
                    End If  
        
                End Sub

GridView

answered on 24 Jan 2011

0 answers

82 views

Hi all

I solved it .

Scheduler and Reminder

asked on 24 Jan 2011

1 answer

255 views

PageView Tab Index or Selected page

Hi,
i am using PageView view mode "Strip" and it has 5 tabs in it,
I want to show the 3rd tab on my button click.

PageView

answered on 23 Jan 2011

5 answers

214 views

GridViewMultiColumnComboBox Filtering

Hi..
We are using RadGridMultiColumnCombo Column in the gridview...
We have hundreds of rows in the dropdown, we want to filter them ....
For this I have set the AutoCompleteMode To AppendSuggest And set DropDownStyle to DropDown
still i m not able to filter the records...

I want it to filter in such a way that, when i click some number it should give me all records starting with that number..

GridView

answered on 22 Jan 2011