Questions on UI for WinForms Forum

6 answers

126 views

Up / Down Keys Not Work after Switch to Sibling ChildGridViewTemplate in 2009Q3Beta

I just installed Telerik Q3 2009 WinForms BETA (2009.2.9.1016) over Q2 2009 (2009.2.9.729) and the Up and Down keys stopped working in at least the following scenario:

Click on any Row in a ChildGridViewTemplate of the MasterGiewTemplate.
Switch to a Sibling (not Cousin) of that ChildGridViewTemplate,
If the CurrentRow jumps up to the Parent Row of the ChildGridViewTemplate, press the Down Key to move the CurrentRow into Sibling ChildGridViewTemplate, else proceed to step 4.
Pressing Up and Down Key after the 1st 0 to 1 times no longer move the CurrentRow (unless I click on another Row).

The only RadGridView change mentioned was removing separate Vertical Scroll Bars for Grids with ChildGridViewTemplates.

Telerik 2009Q3 Beta (2009.2.9.1016), VS 2005 (v8.0.50727.762 SP.050727-7600), XP SP3 on Core2Duo 2.99GHZ with 3GB.

GridView

answered on 19 Nov 2009

1 answer

126 views

Code-databinded combo dropdown issue

Hello

I'm populating a radcombobox control programatically with the code shown below. I know combo is filled with all the items it must, (i can test this using items.count or selecteditem properties), but the fact is that when I click the dropdown arrow, the combo doesn't dropdown, just stays as a single textbox showing only the current item.

This is the code sample:

    
            Public Sub CargarMarcas(ByRef cmbMarcas As Telerik.WinControls.UI.RadComboBox)  
        
                        Using ta As New ArqBD.dsERPConfigTableAdapters.MARCASTableAdapter  
        
                            Using dt As New ArqBD.dsERPConfig.MARCASDataTable  
        
                                ta.Fill(dt)  
        
                                cmbMarcas.DisplayMember = "Nombre" 
        
                                cmbMarcas.ValueMember = "Identificador" 
        
                                cmbMarcas.DataSource = dt  
        
                            End Using  
        
                        End Using  
        
                    End Sub

Note: I've tried the same code in form's load event and in a separate public module (as the sample), and in both cases it doesn't work. Is there something I'm missing? Thank you in advance

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 19 Nov 2009

8 answers

1.1K+ views

RowElement - get row index

I have a situation that I need to change the nth row's background color. I am using the RowFormatting event as recommended. However, I'm struggling to find the row index number.

void tblSearchSSN_RowFormatting(object sender, RowFormattingEventArgs e)
        {
            if (e.....ROW_NUMBER = 5)
               {
                       ....do stuff....
               }
         }

This is probably a really easy one, but any help would be great!
Thanks Ryan

GridView

answered on 19 Nov 2009

1 answer

335 views

[Solved] Dynamically set width of RadComboBox dropdown

I see this thread for hooking up to the DropDownOpened event and changing the size of the drop down window.

http://www.telerik.com/community/forums/winforms/combobox/dropdownwidth-and-tooltip.aspx

This is working for me, but one side effect of this change is the drop down first shows as the 'default' size then adjusts to the size it was changed to in the Event handler.

Is there anyway to avoid that flash using this technique or do I need to roll through my strings and set the DropDownWidth of the RadComboBox when I assign the DataSource to avoid the flash?

Thanks,

-Gary

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 19 Nov 2009

2 answers

129 views

[Solved] Row Formatting

Hi,
Please look at the picture -> formatting for cell is working, but for whole row not.

Regards

GridView

answered on 19 Nov 2009

2 answers

140 views

WinForms RadPanelBar DataBind?

Can I bind RadPanelBar use DataSource like DataSet or others in WinForms?
The RadPanelBar in Asp.Net can bind like that. And I can't find any helps.

Does it have any way? Thank you.

Best regards

Ayumi

Panelbar (obsolete as of Q2 2010)

answered on 19 Nov 2009

3 answers

406 views

[Solved] GridView Filter Row Font Size

Hello,

I have a winform GridView that I'm having a hard time changing the font size. Here is my code.

        private void radGridView1_ViewCellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)
        {
            Font font = new Font("Arial", 20f);
            if (e.CellElement is Telerik.WinControls.UI.GridFilterCellElement)
            {
                ((Telerik.WinControls.UI.GridViewFilteringRowInfo)e.CellElement.RowInfo).Height = 40;
                e.CellElement.DrawFill = true;
                e.CellElement.NumberOfColors = 1;
                e.CellElement.BackColor = Color.Beige;
                e.CellElement.Font = font;
            }

I have also attached a screen-shot of my issue. Basically this changes the font size of the filter row, when the user is not in a cell typing something. But when I try to filter a column and set focus to that specific filter cell, i get a textbox in front of the "big" text with the normal 8.25 point font. What am I doing wrong?

Thanks,
Lu

GridView

answered on 18 Nov 2009

1 answer

145 views

Error due dynamically change RadComboBox items

I try to change RadComboBoxItems collection through casting SelectedIndexChanged event (for localization reasons). And it works fine in version 2009.2.729. But in current version 2009.3.1103 it produced exception ("Object reference not set to an instance of an object") if I change item in combobox. If I press button - all works fine.

What's wrong with that code?

    
            Public Class RadForm1 
        
                Private m_cmbCurLanguage As Boolean = False 
        
                Private Sub RadForm1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
        
                    AssignCurLanguage(0) 
        
                    m_cmbCurLanguage = True 
        
                End Sub 
        
                Private Sub AssignCurLanguage(ByVal lng As Integer) 
        
                    Dim lng1 As String = "", lng2 As String = "", lng3 As String = "" 
        
                    Select Case lng 
        
                        Case 0 
        
                            lng1 = "Eng1" : lng2 = "Ger1" : lng3 = "Fra1" 
        
                        Case 1 
        
                            lng1 = "Eng2" : lng2 = "Ger2" : lng3 = "Fra2" 
        
                        Case 2 
        
                            lng1 = "Eng3" : lng2 = "Ger3" : lng3 = "Fra3" 
        
                    End Select 
        
                    m_cmbCurLanguage = False 
        
                    cmbCurLanguage.Items.Clear() 
        
                    cmbCurLanguage.Items.Add(New Telerik.WinControls.UI.RadComboBoxItem(lng1, 0)) 
        
                    cmbCurLanguage.Items.Add(New Telerik.WinControls.UI.RadComboBoxItem(lng2, 1)) 
        
                    cmbCurLanguage.Items.Add(New Telerik.WinControls.UI.RadComboBoxItem(lng3, 2)) 
        
                    cmbCurLanguage.SelectedIndex = lng 
        
                End Sub 
        
                Private Sub cmbCurLanguage_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbCurLanguage.SelectedIndexChanged 
        
                    If m_cmbCurLanguage Then 
        
                        AssignCurLanguage(cmbCurLanguage.SelectedIndex) 
        
                        m_cmbCurLanguage = True 
        
                    End If 
        
                End Sub 
        
                Private Sub RadButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadButton1.Click 
        
                    AssignCurLanguage(1) 
        
                    m_cmbCurLanguage = True 
        
                End Sub 
        
            End Class

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 18 Nov 2009

1 answer

135 views

Combobox inside radgridview notworking

Hi
I am trying to get a combobox inside the radgridview. Below code doesnt seem to work. Any help would be appreciated

   Dim farmer As New UI.GridViewComboBoxColumn()
            farmer.DataType = GetType(String)
            farmer.UniqueName = "UserID"

            farmer.HeaderText = "Farmer"
            farmer.DataSource = GetFarmerDataSource()
            farmer.DisplayMember = "UserID"
            farmer.ValueMember = "UserCode"
            farmer.FieldName = "UserID"
            farmer.Width = 150

            rgvBill.MasterGridViewTemplate.Columns.Add(farmer)

            Dim Bags As New UI.GridViewTextBoxColumn()
            Bags.DataType = GetType(Int32)
            Bags.UniqueName = "Bags"
            Bags.FieldName = "Bags"
            Bags.HeaderText = "Bags"
            Bags.Width = 50
            rgvBill.MasterGridViewTemplate.Columns.Add(Bags)

My radgrid at design time has no columns defined

GridView

answered on 18 Nov 2009

3 answers

233 views

Row Selection Events

Good Afternoon,

I recently upgraded to the new Radcontrols for Winforms 2009 Q3 and noticed an issue with code that was previously working.

In my grid's I was handling the "CurrentRowChanged" event as it seemed this event would fire after the current row had changed allowing me to look at "GridView1.CurrentRow.GridViewInfo.CurrentIndex" to get the new index of the row that was selected. From this I was able to get some information from a specific Cell that contained an ID and query my database to load assocaited information.

Unfortuantely since installing 2009 Q3, this event still fires, but the resulting Index is always 0 even though the grid itself visually does display the highlighted row properly.

Has something changed with the "CurrentRowChanged" event, should I be using "SelectionChanged" instead? If so I could not find any exampled for "SelectionChanged"

In reality all I am wanting to do is get the index of the newly selected row after it is clicked on.

Any help would be apprecaited.

Thank You,

Chris Eisnaugle

GridView

answered on 18 Nov 2009