Questions on UI for WinForms Forum

0 answers

112 views

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

123 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

452 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

301 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

102 views

Grid View

How to change Style.BackColor property for particular Cell?

GridView

answered on 22 Nov 2012

12 answers

263 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

1 answer

437 views

[Solved] Slow gridview rendering, how it works?

Does GridView use an internal in memory bitmap buffer and then bitblt or does use GDI vector api to paint itself on the screen?

Experiment: Application using RDP terminal server 6.1. Slow bandwidth, high latency connection, rdp server in europe and rdp client in USA east coast.

The grid is drawn slowly, a little box (about 100x100 pixel) appears in the upper left corner, then other boxes are slowly drawn on client screen.

Actually the same data displayed by legacy microsoft access 97 is 10x faster.

How can we improve responsiveness, paying whatever is necessary in terms of ugliness, quality, flickering, whatsoever?

Best Regards.

GridView

answered on 22 Nov 2012

1 answer

232 views

Winforms testing

Hello,
Since Test Studio has no plans to support testing Telerik WinForm applications could you advice a tool or may be tricks for solving this problem?

The best regards,
Igor

General Discussions

answered on 22 Nov 2012

13 answers

663 views

GetSelect items in RadListBox

Hi

I am new to Yelerik controls and need some help..

I am having a problem looping trough selected items in a ListBox and get the selected value of the item..

Usually i would do this in a foreach loop:

    
            private ArrayList GetItems() 
        
                    { 
        
                        ArrayList retVal = new ArrayList(); 
        
                        for(int i = 0; i < listBoxLanguages.Items.Count; i++) 
        
                        { 
        
                            if(listBoxLanguages.GetSelected(i) == true) 
        
                                retVal.Add(i); 
        
                        } 
        
                        return retVal; 
        
                    }

but this does not work in RadListBox control...... GetSelected method does not exist :-(

Any help in appreciated.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 22 Nov 2012