Questions on UI for WinForms Forum

2 answers

91 views

GridViewRelation selfRelaction = new GridViewRelation(this.radGridView1.MasterTemplate, this.radGridView1.MasterTemplate);

selfRelaction.ParentColumnNames.Add("column1");

selfRelaction.ChildColumnNames.Add("column2");

this.radGridView1.Relations.Add(selfRelaction);

this.radGridView1.Columns["column1"].IsVisible = false;

this.radGridView1.Columns["column2"].IsVisible = false;

this.radGridView1.Rows.Add(1, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(2, 1, "1", "1", "1", "1");

this.radGridView1.Rows.Add(3, null, "1", "1", "1", "1");

this.radGridView1.Rows.Add(4, 3, "1", "1", "1", "1");

this.radGridView1.Rows.Add(5, null, "1", "1", "1", "1"

); 



//error : radGridView1.Rows.Count is "0"!

this.radGridView1.Rows[0].IsExpanded = true;

this.radGridView1.Rows[2].IsExpanded = true

;



radGridView1.Rows.Count is "0"!

Help me! Both Q2 and Q3!

GridView

answered on 31 Dec 2010

1 answer

141 views

AutoHide tab height

Hi,

How do I set the height of the tab that is shown when a toolwindow is autohidden?

if I use

radDock.AutoHideWindow(toolWindow);

in the forms ctor the height of the tab is smaller than when doing it in the forms Load eventhandler or when the users manually autohides a toolwindow.

Thanks,
Brian

Dock

answered on 30 Dec 2010

2 answers

157 views

submenu width

Hi,
I have a problem with submenus width in a radapplicationmenu inside a radribbonbar.
My submenus are larger then the main menu.

How ca I set my submenus as large as my main menu ?

As attachement a screenshot of my problem

Main Menu
Sub Menu

RibbonBar

answered on 30 Dec 2010

3 answers

240 views

How can I disable hot tracking from column header elements?

Hi

How can I disable hot tracking from column header elements?

Regards

GridView

answered on 29 Dec 2010

1 answer

172 views

Series.DefaultLabelValue format to ShortDate

Hi,

I am using RadChart to show datetime values in X Axis. I need to show in the values, both values: x and y.

I use the property DefaultLabelValue in Series object: this.radChart1.Series[0].DefaultLabelValue = "#Y";

I need show X value in shortdate format. If I write this.radChart1.Series[0].DefaultLabelValue = "#X,#Y"; , the values are doubles and not datetime.

Thanks,

Chart (obsolete as of Q1 2013)

answered on 29 Dec 2010

1 answer

105 views

DropDownList not a drop-in Replacement for standard Winforms ComboBox

If you are using these new controls, be aware that there are subtle inconsistencies between them and the standard Windows Forms controls.
If you rely on standard behaviour, your code may not work as expected.
I expect telerik to fix that, so when you code to the controls as they are now, expect having to change that back again with upcoming releases.

Bugs I found (and reported) so far:
- FindStringExact throws an Exception if Item.Count is 0
- Adding an Item to the DropDown List clears the TextBox

Regards
Erwin

DropDownList

answered on 29 Dec 2010

3 answers

204 views

Items redraw slow after enabling RadPanel

Hi!

I am using RadPanel as a container for 8 buttons (generic winforms buttons) and use it to enable or disable all the buttons at once. The problem that I am facing is, that after enabling the panel, buttons are not drawn as enabled immediately, but are drawn as enabled in a haphazard manner (eg.: first two buttons are drawn as enabled, followed by 3 other buttons, etc). On a generic panel buttons are drawn immediately without any extra settings, so my question is, how can I enable the same behavior on RadPanel? I tried doing Refresh immediately after enabling the panel, as well as enabling double buffering, but it didn't help. I am using version 2010.3.10.1109 of WinForms.

Panel

answered on 29 Dec 2010

1 answer

100 views

RadGridView and Editfields bound to the same datasource not synchronized

Hello all.
I see a strange behaviour when using the RadGridView instead of the DataGridView.
The grid's property is set to not allow to add new lines and not to be editable.

I have a win form with a DataGridView and two edit fields and a binding navigator.The DataGridView and the edit fields are bound to a database table.
If i press the „Add“ button in the binding navigator, the DataGridView scrolls down to the bottom, adds an empty line at the bottom and the two edit fields are cleared. After entering data in the edit fields, and selecting any other items in the DataGridView, the values from the edit fields are shown in the new line at the bottom of the grid.

Now I have replaced the DataGridView with the RadGridView 2010 Q3.

If I press the „Add“ button in the binding navigator, the RadGridView scrolls down (but not to the very bottom), adds an empty line at the bottom, however it does not scroll to this new line. So it’s invisible until the user scrolls the list to the end. The two edit fields still have the content of the last selected item. They are not cleared. I can overwrite in the two edit fields the existing values with some new values. The new values are now in the dataset but the RadDataView is not updated with the new values. At the bottom in the grid, there is still the new empty line. If I click on the empty line, the correct values are shown in the edit fields.
If I sort the RadGridView the empty line is updated with the value, entered in the edit field.

I want a behaviour like the .NET DataGridView.

I had a chance to install the 2009Q3 version of WinForms. And surprisingly here the behaviour is as I have expected (same as MS DataGridView).

So this leads to the conclusion, that between the versions 2009Q3 and 2010Q3 there was introduced a problem with the update mechanism.

GridView

answered on 29 Dec 2010

1 answer

113 views

Relation issue

Hello. Merry Christmas to you all.

I have A radgrid, bound to 2 datasets with hierarchy.

The relation is based upon a number, as it has to keep track of orders entered in the database.
My only issue is that orders that needs to be deliverd, gets a delivery number instead of an order number.
Here's my problem.

So from dataset 1 it loads all the data needed, included the order number. In my child, i call all the records containing that order number.
But when I need to load data for the delivery number, i get zero returns, because the order number acutally can not be changed.

So i need a way to make the grid look if the delivery number is 0, then load based on order number.
If deliver number > 0, then load based on delivery number.

Here's my code.

Hoping someone can help me.

dsRittenTemp.Clear()

dsGoederenTemp.Clear()

'

cmdRittenTemp = New Odbc.OdbcCommand("Select * FROM ritten_temp WHERE ritnummer = '" & RitNummer & "'", cn)

adpRittenTemp = New Odbc.OdbcDataAdapter(cmdRittenTemp)

adpRittenTemp.Fill(dsRittenTemp, "ritten_temp")

'

cmdGoederenTemp = New Odbc.OdbcCommand("Select * FROM goederen_temp", cn)

adpGoederenTemp = New Odbc.OdbcDataAdapter(cmdGoederenTemp)

adpGoederenTemp.Fill(dsGoederenTemp, "goederen_temp")

' Me.RadGridViewOverView.MasterTemplate.Templates.Clear()

RadGridViewOverView.DataSource = dsRittenTemp

RadGridViewOverView.DataMember = "ritten_temp"

Dim template As New GridViewTemplate()

template.DataSource = dsGoederenTemp

template.DataMember = "goederen_temp"

RadGridViewOverView.MasterTemplate.Templates.Add(template)

Dim relation As New GridViewRelation(RadGridViewOverView.MasterTemplate)

relation.ChildTemplate = template

relation.RelationName = "goederenticket"

relation.ParentColumnNames.Add("goederenticket")

relation.ChildColumnNames.Add("goederenticket")

RadGridViewOverView.Relations.Add(relation)

RadGridViewOverView.AllowEditRow = False

RadGridViewOverView.MasterTemplate.Templates(0).AllowEditRow = False

GridView

answered on 29 Dec 2010

3 answers

195 views

SpinEditor Events not firing

I'm using version 2010.3.10.1109 of the Telerik controls.

I'm trying to handle key strokes on a RadSpinEditor control; however the events are not being raised (so far as I can tell). The ValueChanging event does happen; however I'm trying to subscribe to the KeyPress, KeyDown, KeyUp and none of those are happening.

My real dilemna is that I've established a Maximum and Minimum value for the spin editor. When a user enters a value outside those boundaries the control automatically sets the value to the min or max without telling the user that it did it. I want to know when this happens and inform the user myself.

SpinEditor

answered on 29 Dec 2010