Questions on UI for WinForms Forum

3 answers

325 views

Hi,

I work in public safety and building fast applications is critical. We have to rebuild a VB6 application in .NET, and we want to use Telerik to do so. However, while trying the RadDock control, I found that it is not really fast, and not efficient at all. I have to load a couple of tool windows, containing labels textboxes, comboboxes and sometimes gridviews,

Maybe I'm not using the proper controls, but I want you guys to have a look at it, and explain to me why it is so slow, and how could I improve the performances.

The control I'm loading in the ToolWindow is a RadForm. Here is the call opening the ToolWindow :

private void radMenuItem2_Click(object sender, EventArgs e)

{

RadForm1 form = new RadForm1();

radDock1.DockControl(form, Telerik.WinControls.UI.Docking.DockPosition.Left, Telerik.WinControls.UI.Docking.DockType.ToolWindow);

}

It takes about 3-4 seconds to load.
My biggest concern is that the app is already very slow, and there is not even a single data fetched and display in the form...

Thanks a lot for your help!

Dock

answered on 01 Sep 2011

4 answers

172 views

Display of the selected item

Hi,
i want a special display of my selecteditem.
I don't speak english very well so i took a screenshot of what i have, and a second of what i want.
I only want to change the state of the selecteditem, i want to keep the orginal state when i click arrow to change the element.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 01 Sep 2011

4 answers

158 views

Q2 2011 e.Row.ViewTemplate.Refresh();

Hi All,

I have a grid with large number of records and child rows attached. If I scroll down to even one page and chagne the value of a child row's cell, as soon as i leave the cell scroll bar goes back to the top which is causing hard time because you have to scroll down again and find the record to update other cells.

I have tested with another project as soon as we execute 'e.Row.ViewTemplate.Refresh(); ' it took the scroll bar back to top I have tried other functions too but problem persist. It is a bug in Q2 2011?

Thanks

GridView

answered on 01 Sep 2011

1 answer

310 views

ScrollControlIntoView doesn't work

How conditions have to exist that ScrollControlIntoView work?

I've set AutoScroll = true for radTreeViewControl and I call :

tn - is a found node

    DirectoryRadTreeView.SelectedNode = tn;
    DirectoryRadTreeView.BringIntoView(tn);
    DirectoryRadTreeView.ScrollControlIntoView(DirectoryRadTreeView);

Treeview

answered on 01 Sep 2011

4 answers

208 views

RadMaskedEditBox MouseClick Event

I'm trying to use the mouse click event on a RadMaskedEditBox, however nothing fires. Is this a bug?

thanks,

Bret

MaskedEditBox

answered on 01 Sep 2011

4 answers

280 views

problem with SelectedItem

Hi I was using the following with a standard listBox

Private Sub RadListControl1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As Telerik.WinControls.UI.Data.PositionChangedEventArgs) Handles RadListControl1.SelectedIndexChanged

If RadListControl1.SelectedIndex > -1 Then

Dim tenants As Tenant = RadListControl1.SelectedItem

RadTextBox5.Text = tenants.ID

RadTextBox6.Text = tenants.FirstName

RadTextBox7.Text = tenants.Existing

RadTextBox8.Text = tenants.LastName

End If

End Sub

however when I try to use the RadListControl I get an error on this line

Dim tenants As Tenant = RadListControl1.SelectedItem

error Value of Type telerik.win.controls.UI.RadListDataItem ' cannot be converted to mainSystem.Tenant?

please advise

ListControl

answered on 01 Sep 2011

7 answers

179 views

'RowIndex' is not a member of 'Telerik.winControls.UI.GridView.CellInfo'

Then what is the counterpart of RowIndex?

I have a form with a GridView on it and it displays the data i want it to perfectly, However I want to bring up an Add/ Edit form using a context menu strip to edit or add a record to the database. To fill the form for the edit part I need to do something like this(actually works when using the standard Data Grid)

Private Sub EditToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles EditToolStripMenuItem.Click

Dim frm As New frmAddEdit

frm.GUID_User = Me.dgvUsers.Item(0, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.GUID_Group = Me.dgvUsers.Item(1, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtADName.Text = Me.dgvUsers.Item(2, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtUserName.Text = Me.dgvUsers.Item(3, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtEmail.Text = Me.dgvUsers.Item(4, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtLogin.Text = Me.dgvUsers.Item(5, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtPassword.Text = Me.dgvUsers.Item(6, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtTelNo.Text = Me.dgvUsers.Item(7, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtFax.Text = Me.dgvUsers.Item(8, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.cbActive.Checked = IIf(Me.dgvUsers.Item(9, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString() = "True", True, False)

frm.GUID_Company = Me.dgvUsers.Item(10, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.cbLead.Checked = IIf(Me.dgvUsers.Item(11, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString() = "True", True, False)

frm.cbSplit.Checked = IIf(Me.dgvUsers.Item(12, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString() = "True", True, False)

frm.cbTelesales.Checked = IIf(Me.dgvUsers.Item(13, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString() = "True", True, False)

frm.cboOffice.SelectedValue = Me.dgvUsers.Item(14, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.txtAddress.Text = Me.dgvUsers.Item(15, Me.dgvUsers.SelectedCells(0).RowIndex).Value.ToString()

frm.Text = "Edit User"

frm.ShowDialog()

End Sub

The Problem is that the Rad GridView doesn't recognize the RowIndex.

Can Anyone help me with a solution?
What is the Telerik Grid's counterpart to the standard DataGrid's RowIndex

GridView

answered on 01 Sep 2011

2 answers

457 views

Data Bound Item

Hi !
I have a grid with some columns.
If I double click a cell I want to open a window chose some values and update the cell value. Is working fine for rows already in the table.
For new rows "Click here to add new row " is not working.
I've seen something strange.

I have this code
Dim currentRow As GridViewRowInfo = CType(sender, RadGridView).CurrentRow
if currentRow.DataBoundItem Is Nothing
do something

But even if I seen in watch screen this as having nothing value
the "do something" line is not executed .It jumps over it. Is like is a value there, even I see in watch window this currentRow.DataBoundItem = nothing.

Why is that ?
How I can access the current NEW line and modify cell values through code ?

Regards,
Mihai

GridView

answered on 31 Aug 2011

2 answers

155 views

Change gridview headertext column forecolor

Hi, how can i change the headertext forecolor of some columns of my radgridview.
Some columns are required and i want to put the headertext in red.
thanks

GridView

answered on 31 Aug 2011

1 answer

114 views

Restrict user to enter date from keyboard

Hi,

Actually in RadDateTimePicker, I want to restrict the user to enter date from keyboard .
i.e permit user to select date using drop down not by typing.
please give solution ASAP.. urgent!!!!

Best regards
Saikiran Ch

Calendar, DateTimePicker, TimePicker and Clock

answered on 31 Aug 2011