Questions on UI for WinForms Forum

1 answer

176 views

Movies...

Hi,

I would be interested in a product like vlc or wmp. Both have their own issues.., and having telerik putting a tool like this on the market with all of your experience and support would make me jump in quadric circles.

Karl

New Product Suggestions

answered on 16 Jul 2012

1 answer

190 views

Set start and end times for timepicker

In the ASP.Net controls you are able to set the control up so that the control times are within a certain range. IE times from 8am through to 6pm and users can only select these values from the drop down.

Is this possible in the winforms timepicker control? If it is, how is it done?

Thanks,
Karl

Calendar, DateTimePicker, TimePicker and Clock

answered on 16 Jul 2012

2 answers

492 views

How to identify whether current row is group header

Hi all,

I use grouping in my grid view. What I want to achieve is when the user changes the current row by clicking or pressing up/down arrow the grid view will show the information about the current row using text boxes but if the current row is a group header the grid view won't perform any action.

Is there any way to identify that the current row is a group header so that I can achieve this scenario?

Thanks

GridView

answered on 16 Jul 2012

3 answers

166 views

RowFormatting going crazy

Hello,

I want to give a different format to some rows (based on a property of the databound items). It works good, but some rows decide, on they own, to use a special format.

If I use only one BackColor and a solid GradientStyle, the problem do not appear (but linear Gradient looks far better. Isn't it?)

Should I have miss something or it's bug ?

Private Sub dgv_Clients_RowFormatting(sender As System.Object, e As Telerik.WinControls.UI.RowFormattingEventArgs) Handles dgv_Clients.RowFormatting

Dim ClientBound As Client = TryCast(e.RowElement.Data.DataBoundItem, Client)
If ClientBound IsNot Nothing AndAlso Helper.ActiveDirectoryHelper.GetInstance.GetCurrentUser.Guid.Equals(ClientBound.FK_OwnerUser) Then
e.RowElement.DrawFill = True
e.RowElement.BackColor = Color.Red
e.RowElement.BackColor2 = Color.White
e.RowElement.BackColor3 = Color.White
e.RowElement.BackColor4 = Color.White
e.RowElement.GradientStyle = GradientStyles.Linear
e.RowElement.GradientAngle = 360
Else
e.RowElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor2Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor3Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor4Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.GradientAngleProperty, ValueResetFlags.Local)
End If
End Sub

GridView

answered on 16 Jul 2012

5 answers

176 views

Custom Items Re-drawing itself, and location of checkbox?

Two questions / issues. Easy one first.

a) How do I control the alignment of the checkbox that appears in a ListViewDataItem? It seems stuck in the middle and I'd like to align it with my text.

b) I'm creating custom ListViewDataItems, as I need to add a "legend" to each drop down. Here's the sample code I'm using...

First, the code in _VisualItemCreating

private void rlvLegend_VisualItemCreating(object sender, ListViewVisualItemCreatingEventArgs e)

{

e.VisualItem = new LegendCustomVisualItem();

}

Second, the override of CreateChildElements

protected override void CreateChildElements()

{

base.CreateChildElements();

this.stackLayout = new StackLayoutPanel();

this.stackLayout.Orientation = Orientation.Vertical;

this.stackLayout.EqualChildrenWidth = true;

//Header space

this.p1 = new RadPanelElement();

p1.AutoSize = true;

p1.MinSize = new Size(200, 20);

p1.NotifyParentOnMouseInput = true;

p1.ShouldHandleMouseInput = false;

p1.PanelBorder.Visibility = ElementVisibility.Hidden;

this.stackLayout.Children.Add(p1);

this.stackLayout.Children.Add(new LegendCustomStack("Test 1", Color.Red, Color.Red));

this.stackLayout.Children.Add(new LegendCustomStack("Test 2", Color.Blue, Color.Red));

this.stackLayout.Children.Add(new LegendCustomStack("Test 3", Color.Aquamarine, Color.Red));

this.stackLayout.Children.Add(new LegendCustomStack("Test 4", Color.DimGray, Color.Red));

this.Children.Add(this.stackLayout);

}

Lastly, the other items I've created in the last couple lines..

public class LegendCustomStack : StackLayoutPanel

{

private int _height = 15;

public LegendCustomStack(string labelText, Color fillColor, Color outlineColor)

{

//spacer panel

RadPanelElement p2;

p2 = new RadPanelElement();

p2.AutoSize = true;

p2.MinSize = new Size(25, _height);

p2.NotifyParentOnMouseInput = true;

p2.ShouldHandleMouseInput = false;

p2.PanelBorder.Visibility = ElementVisibility.Hidden;

this.Children.Add(p2);

RadPanelElement p3 = new RadPanelElement();

p3.AutoSize = false;

p3.Size = new Size(_height, _height);

p3.PanelFill.NumberOfColors = 1;

p3.PanelFill.BackColor = fillColor;

p3.PanelBorder.ForeColor = outlineColor;

p3.NotifyParentOnMouseInput = true;

p3.ShouldHandleMouseInput = false;

//p3.Alignment = ContentAlignment.MiddleLeft;

this.Children.Add(p3);

RadLabelElement l1 = new RadLabelElement();

l1.Text = labelText;

l1.NotifyParentOnMouseInput = true;

l1.ShouldHandleMouseInput = false;

l1.TextAlignment = ContentAlignment.TopLeft;

this.Children.Add(l1);

}

When I load up my items, it looks fine, until I have too many that the scroll bars appear. If I scroll down, everything is fine. If I scroll up, the LegendCustomStack items seem to jump around randomly from ListDataItem to ListDataItem (sometimes completely disappearing)

(I created a version where, the colours were random to better demonstrate the behavior, but I think I backout out those changes)

Any ideas what I'm doing wrong?

Thanks!!!

Rob.

CheckedListBox

answered on 16 Jul 2012

3 answers

187 views

Error after update to new version

Hi,

I have just updated to the latest version (RadControls for WinForms, v.2012.2.608.40) and I am now getting on this line:

chartMarginsTitle1.Bottom = ((Telerik.Charting.Styles.Unit)(resources.GetObject("chartMarginsTitle1.Bottom")));

Warning 1 Object of type 'Telerik.Charting.Styles.Unit' cannot be converted to type 'Telerik.Charting.Styles.Unit'.

Could you tell me what must be changed)

Thank you

Karl

ChartView

answered on 16 Jul 2012

2 answers

990 views

GridViewCheckBoxColumn - Need Check Changed Event

Hi. I'm using a GridViewCheckBoxColumn, and I would like to have an event fire when the user changes the state of the checkbox by checking it, either by mouse or keyboard. Right now I've found that I can hook a variety of events that only fire after the cell's value is changed and the cell loses focus. But I need an event that actually happens as soon as the checkbox is changed. I'm running version 2012.1.321.20.

The only thing I've found that works is reaching into the virtualized cell, getting the RadCheckBoxEditorElement, and then hooking the PropertyChanged event on it. This is pretty ugly and cumbersome. It also presents a serious issue in that I don't know how to hook this event just once, since if I hook this event in the CellFormatting handler, I will end up hooking the event many, many times.

Is there a straightforward way to accomplish what I want?

Thanks.

GridView

answered on 14 Jul 2012

1 answer

263 views

Show image in cell using Bound Data

Hi there-

I hope this is an easy one...

I have a gridView that is bound to a stored procedure. One of the columns is of type GridViewImageColumn. The data returned from the proc is of Integer type. What I'm looking for is comparing the value (0 or greater than 0), whereas if 0, hide the image, if greater than 0, show the image.

So, given that, my first question is, how do I associate or add the image/png for the column/cell and how and when do I interrogate the bound data to show the image if greater than 0.

Hope this makes sense.

Thanks
Bob

GridView

answered on 13 Jul 2012

1 answer

96 views

Raddock Document Tool

hi
I have a problem with raddock .

How can I disable the activation of the menustrip, in other words, disable the function.

Please refer to the attached picture showing this problem.

Thanks

Dock

answered on 13 Jul 2012

1 answer

203 views

GridViewComboBoxColumn (RadGridview for Winforms)

Hi,

I am using the "GridViewComboBoxColumn" in the radgrid win forms. I have created a type of GridViewComboBoxColumn and added it to radgridview.

            gridViewDDLCombbxColumn2.FieldName = "Data Base No";
            gridViewDDLCombbxColumn2.Name = "DataBaseNoCombo";
            gridViewDDLCombbxColumn2.HeaderText = "Data Base Num";
            gridViewDDLCombbxColumn2.DataSource = GetUserGrpData;
            gridViewDDLCombbxColumn2.DisplayMember = "DBNumber";
            gridViewDDLCombbxColumn2.ValueMember = "UserGroupID";
            this.radGridViewUserGroup.MasterTemplate.Columns.Add(gridViewDDLCombbxColumn2);

I am facing an issue when setting a default value or value from database to GridViewComboBoxColumn and while updating also I am not able to read the selected value from the GridViewComboBoxColumn.

For E.G:
this.radDdlDn.SelectedValue = currentRow.Cells["UserID"].Value;
The above statement can be used to assign the value to radDropdownlist.

String strddlValue=this.radDdlDn.selectedItem.Text
The above statement can be used to read the selected value from radDropdownlist.

Similarly how can we  perform the same operation with GridViewComboBoxColumn in radGridview

Thanks in advance
Shiva

GridView

answered on 13 Jul 2012