Questions on UI for WinForms Forum

3 answers

307 views

Hi,

I recently got the below exception, couldn't reproduce it again.
Any idea on this,

:Error At: radpageview1_SelectedPageChanging
| System.OutOfMemoryException | Exception of type 'System.OutOfMemoryException' was thrown. | mscorlib | at System.Collections.Generic.Dictionary`2.Initialize(Int32 capacity)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Telerik.WinControls.RadPropertyValueCollection.GetEntry(RadProperty prop, Boolean createNew)
at Telerik.WinControls.RadElement.set_ShouldPaint(Boolean value)
at Telerik.WinControls.Primitives.FillPrimitive.InitializeFields()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.UI.ScrollBarButton.CreateChildElements()
at Telerik.WinControls.RadElement.CallCreateChildElements()
at Telerik.WinControls.RadElement.Construct()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.RadItem..ctor()
at Telerik.WinControls.UI.ScrollBarButton..ctor(ScrollButtonDirection direction)
at Telerik.WinControls.UI.RadScrollBarElement.CreateChildElements()
at Telerik.WinControls.RadElement.CallCreateChildElements()
at Telerik.WinControls.RadElement.Construct()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.RadItem..ctor()
at Telerik.WinControls.UI.RadScrollBarElement..ctor()
at Telerik.WinControls.UI.RadScrollLayoutPanel.CreateChildElements()
at Telerik.WinControls.RadElement.CallCreateChildElements()
at Telerik.WinControls.RadElement.Construct()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.UI.RadScrollLayoutPanel..ctor()
at Telerik.WinControls.UI.RadScrollViewer.CreateScrollLayoutPanel()
at Telerik.WinControls.UI.RadScrollViewer.CreateChildElements()
at Telerik.WinControls.RadElement.CallCreateChildElements()
at Telerik.WinControls.RadElement.Construct()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.RadItem..ctor()
at Telerik.WinControls.UI.RadScrollViewer..ctor()
at Telerik.WinControls.UI.RadDropDownMenuElement.CreateChildElements()
at Telerik.WinControls.RadElement.CallCreateChildElements()
at Telerik.WinControls.RadElement.Construct()
at Telerik.WinControls.RadElement..ctor()
at Telerik.WinControls.UI.RadDropDownMenu.CreatePopupElement()
at Telerik.WinControls.UI.RadDropDownMenu.InitializeChildren()
at Telerik.WinControls.UI.RadDropDownMenu..ctor(RadElement ownerElement, RadDropDownMenu parentPanel)
at Telerik.WinControls.UI.RadDropDownMenu..ctor()
at Telerik.WinControls.UI.RadContextMenuDropDown..ctor()
at Telerik.WinControls.UI.RadContextMenu..ctor(IContainer owner)
at Telerik.WinControls.UI.RadContextMenu..ctor()
at Telerik.WinControls.UI.RadMaskedEditBoxElement..ctor()
at Telerik.WinControls.UI.RadMaskedEditBox.CreateChildItems(RadElement parent)
at Telerik.WinControls.RadControl.Telerik.WinControls.IComponentTreeHandler.CreateChildItems(RadElement parent)
at Telerik.WinControls.RadControl.ComponentOverrideElementTree.CreateChildItems(RadElement parent)
at Telerik.WinControls.RadControl.Construct()
at Telerik.WinControls.RadControl..ctor()
at Telerik.WinControls.UI.RadMaskedEditBox..ctor()
at Form1.InitializeComponent()

Form

answered on 23 Nov 2012

9 answers

377 views

Where is RadChart in VS2010 Toolbox.

I can't seem to get the RadChart into a VS2010 toolbox. I'm using Q1 2010 SP2, and Q2 2010 Beta Winform controls in a .net 4 project.

Chart (obsolete as of Q1 2013)

answered on 23 Nov 2012

2 answers

133 views

[Solved] Event fired after RadTileElement Drag Drop

Hi,
I'm trying to save last position of the tile element after I do drag and drop, but I cannot seems to find what event fired after I drop the RadTileElement in new position. I have tried using the mouseUp event, but it seems the MouseUp event doesn't fired when you do a drag drop.
Any suggestions what event fired after a drag drop in RadTileElement

Thanks,
Sendy

Panorama

answered on 23 Nov 2012

0 answers

119 views

Allow specific letters in RadGridView

Hi,
How to allow only C and D letters to be written int the third column of the radGridView. And prevent the user to type any other letters or characters??

Thankfully Yours.

GridView

asked on 23 Nov 2012

0 answers

136 views

Cell color not changing in Cell Validated Event Handler

Hi Telerik,
I got a Radgrid in my project, when i load the data i used Cell Formatting to give some colors by this way.

private void PrimaryRadGridView_CellFormatting(object sender, CellFormattingEventArgs e)

{

if (e.CellElement.ColumnInfo.FieldName == "ID")

{

e.CellElement.DrawFill = true;

e.CellElement.NumberOfColors = 1;

e.CellElement.BackColor = Color.LightSlateGray;

e.CellElement.GradientStyle = GradientStyles.Linear;

}

if (e.CellElement.ColumnInfo.FieldName == "Type")

{

e.CellElement.DrawFill = true;

e.CellElement.NumberOfColors = 1;

e.CellElement.BackColor = Color.LightSlateGray;

e.CellElement.GradientStyle = GradientStyles.Linear;

}

if (e.CellElement.ColumnInfo.FieldName == "BBor")

{

e.CellElement.DrawFill = true;

e.CellElement.NumberOfColors = 1;

//e.CellElement.ForeColor = Color.Red;

e.CellElement.BackColor = Color.LightGoldenrodYellow;

e.CellElement.GradientStyle = GradientStyles.Linear;

}

if (e.CellElement.ColumnInfo.FieldName == "EBor")

{

e.CellElement.DrawFill = true;

e.CellElement.NumberOfColors = 1;

e.CellElement.ForeColor = Color.Red;

e.CellElement.BackColor = Color.LightGoldenrodYellow;

e.CellElement.GradientStyle = GradientStyles.Linear;

}

if (e.CellElement.Value != null && e.CellElement.Value.ToString() == "PE0")

{

e.Row.Cells[4].ReadOnly = true;

e.Row.Cells[4].Value = "XXXXXXXXXX";

e.Row.Cells[4].Style.BackColor = Color.DarkRed;

e.Row.Cells[4].Style.CustomizeFill = true;

}

Then I'm using to validate the cells and to change Fore & back color after the validation, but the color is not changing.
Cell Validated code:

private void PrimaryRadGridView_CellValidated(object sender, CellValidatedEventArgs e)

{

if (e.ColumnIndex != 3)

return;

if (e.RowIndex != -1)

{

int nextRowIndex = e.RowIndex + 1;

int lastRowIndex = PrimaryRadGridView.Rows.Count - 1;

if (nextRowIndex <= lastRowIndex)

{

var value = PrimaryRadGridView.Rows[e.RowIndex].Cells[3].Value.ToString();

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].Value = value;

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].ReadOnly = true;

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].Style.ForeColor = Color.Blue;

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].Style.BackColor = Color.GreenYellow;

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].Style.CustomizeFill = true;

PrimaryRadGridView.ClearSelection();

PrimaryRadGridView.SelectionMode = Telerik.WinControls.UI.GridViewSelectionMode.CellSelect;

PrimaryRadGridView.Rows[nextRowIndex].Cells[3].BeginEdit();

PrimaryRadGridView.Rows[nextRowIndex].Cells[2].Style.ForeColor = Color.Blue;

PrimaryRadGridView.Rows[nextRowIndex].Cells[3].Style.BackColor = Color.GreenYellow;

PrimaryRadGridView.Rows[nextRowIndex].Cells[3].Style.CustomizeFill = true;

}

When i put a break point at both cell formatting & cell validated both are clashing each other. How ca i fix this problem, please help me.

GridView

asked on 22 Nov 2012

4 answers

470 views

[Solved] Vertical Scroll position

Hey Guys

Scratching my head over this one.. I have a grid populated by an SQL query.

On queries that require the vertical scroll bar to be shown , the first search displays with the Grid at the top of the results. ( scroll position at the top)

If I just hit search again without touching anything else... the scroll goes to the last row every time.

I have even tried setting this at the end of each search , but still the scroll appears at the end of the selection after the first populate.

Me.RadGridView1.TableElement.ScrollTo(0, 0)

I hate spending hours on something that is probably very easy ! It must be something I am doing to clear the Grid and repopulate it.. but haven't managed to find it!.

Any hints / thoughts?

Thanks

Rob

GridView

answered on 22 Nov 2012

8 answers

312 views

row Border Coordinates of a radgridView

Hi,

How to get the row Border Coordinates of a gridView for a winform application.

Regards,
Vishal

GridView

answered on 22 Nov 2012

2 answers

115 views

Grid View

How to change Style.BackColor property for particular Cell?

GridView

answered on 22 Nov 2012

12 answers

275 views

Unique items in GridViewComboBoxColumn for One to One relation

In radGridView I've GridViewComboBoxColumn column:

GridViewComboBoxColumn MemberColumn = new GridViewComboBoxColumn();

MemberColumn.Name = "MemberColumn";

MemberColumn.HeaderText = "Member";

MemberColumn.DataSource = ctx.Members;

MemberColumn.ValueMember = "MemberID";

MemberColumn.DisplayMember = "MemberName";

MemberColumn.FieldName = "MemberID";

this.ResultGridView.Columns.Add(MemberColumn);

In EF model I've One to One Relationship:
Link
I want to show in MemberColumn dropdownlist show only not added items to ResultGridView from Members Entity.
Because user can't add twice 1 member to Data table.
Thanks

GridView

answered on 22 Nov 2012

8 answers

1.7K+ views

how to set row header text

Hi, i want to know how to set row header text in datagird. usually, the icon arrow was displayed.

GridView

answered on 22 Nov 2012