Questions on UI for WinForms Forum

15 answers

566 views

Changing fore and background color of headers at runtime

In c# I would like to programmatically set the foreground and background colors of the header cells at runtime. Is this possible?

GridView

answered on 28 Jul 2011

1 answer

96 views

Gold historical chart

Hello ,
      I got gold historical data like

01/02/2001    271.10
01/03/2001    267.15
01/04/2001    267.10
01/05/2001    267.40
01/06/2001    262.70
01/08/2001    268.30
01/09/2001    267.00

How can i build like yahoo graph like
http://finance.yahoo.com/q/bc?s=GOLD+Basic+Chart

I also got this data in CSV , MDB , EXCEL.

Many thanks
David

Chart (obsolete as of Q1 2013)

answered on 28 Jul 2011

10 answers

438 views

Group row coloring

Is it possible to color each group differently? For example, if I were grouping my grid by Age and Gender could I make the header rows of Age red and the header rows of Gender blue? (Note: Not the rows of the actual data being grouped, just the headers)

Also, is it possible to add text to row headers? For example, if I was grouping by department number, could I put the departments total income in the grouping header?

GridView

answered on 28 Jul 2011

2 answers

88 views

is there a solution categorize a row and put it in two different group

i just want a solution to categorize a row and put it in two different group , is there any solution ?!
for example i have a list like below :

Id - Color
--------------------------------------------------------------
1 - blue , red
2 - red
3 - blue , green

and want to group by color and have a output list like below :

group : red
--------------------------------------------------------------
1 - blue , red
2 - red

group : blue
--------------------------------------------------------------
1 - blue , red
3 - blue , green

group : green
--------------------------------------------------------------
3 - blue , green

GridView

answered on 28 Jul 2011

1 answer

182 views

ShowDropDown problem

I am using a RadDropDownList (Q2 2011) as a search box to find a student. The user types in a name into the RadDropDownList and either hits the enter key or clicks a button.

I am using the KeyPress event to test for the enter key. Both the KeyPress event and the button click event call a FindStudent routine.

The FindStudent routine retrieves data from a database and populates the RadDropDownList using a for loop and adding an object to the list with .Items.Add method. At the end of the routine it calls the ShowDropDown() method.

If I type in the RadDropDownList and click on the button, the drop down shows correctly. If I type in the RadDropDownList and hit the Enter key the drop down shows and then immediately disappears.

How can I get the drop down to stay when hitting the enter key? Thanks for your help.

Below is my code for the KeyPress event, Button Click event and FindStudent routine.

private void FindStudent_Btn_Click(object sender, EventArgs e)

{

string fsText = FindStudent_DDL.Text;

FindStudent_DDL.Items.Clear();

FindStudent(fsText);

}

private void FindStudent_DDL_KeyPress(object sender, KeyPressEventArgs e)

{

if (e.KeyChar == (char)13)

{

string fsText = FindStudent_DDL.Text;

FindStudent_DDL.Items.Clear();

FindStudent(fsText);

}

private void FindStudent(string fsText)

{

... code that retrieves data from database and populates a DataTable dt ...

if (dt.Rows.Count > 0)

{

for (int i = 0; i < dt.Rows.Count; i++)

{

StudentObject student = new StudentObject(dt.Rows[i]["id_num"].ToString(), dt.Rows[i]["last_name"].ToString(), dt.Rows[i]["first_name"].ToString());

FindStudent_DDL.Items.Add(new RadListDataItem(student.ToString(), student));

}

FindStudent_DDL.ShowDropDown();

}

DropDownList

answered on 27 Jul 2011

1 answer

131 views

Custom dictionary and suggested words

Hi,

I have a problem while using the spellcheck feature for RadRichTextBox.

I'm loading a custom dictionary using the following command line:

CType(Me.RadRichTextBox1.SpellChecker, DocumentSpellChecker).AddDictionary(dictionary, CultureInfo.InvariantCulture)

Then, I set the IsSpellCheckingEnabled as True.

The spellchecker does not recognize the words in the dictionary file.

The misspelled words are underlined, but suggested words do not show up when I click the misspelled word. How can I get the suggested word to show up?

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 27 Jul 2011

2 answers

81 views

Is it possible to paint 1000 points on a line chart with only a few labels on x-axis?

Hi,

I'm trying to customize a RAdChart(Line Chart) to let it paint 1000 points but with only a few labels on x-axis. Can anyone tell me if this is possible? And if possible, how should I configure the Chart?

Thanks,
Leo

Chart (obsolete as of Q1 2013)

answered on 27 Jul 2011

1 answer

148 views

resize problem by autoscroll

Hello,

I have a problem with the RadSplitContainer. I would like to place more sizable panels in the RadSplitContainer.

If the AutoScroll of RadSplitContainer is true and I scroll the container a little, don’t work the resizes of the panels.

How can I resize the panels after scroll?

Is it a bug in the RadSplitContainer? If yes, is there a workaround to this?

Below is the sample code

Thanks

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

RadSplitContainer radSplitContainer1 = new RadSplitContainer()

{

Dock = DockStyle.Fill,

AutoScroll = true

};

this.Controls.Add(radSplitContainer1);

for (int i = 0; i < 10; i++)

{

var panel = new SplitPanel();

panel.SizeInfo.SizeMode = SplitPanelSizeMode.Absolute;

panel.SizeInfo.AbsoluteSize = new Size(100, 0);

radSplitContainer1.SplitPanels.Add(panel);

}

SplitContainer

answered on 27 Jul 2011

2 answers

68 views

Statusstrip items edit error

I received this error when I tried to edit the items collection using the smarttag for the statusstrip control:

I am using the Q2 release of the Winforms controls. Any help would be appreciated.

StatusStrip

answered on 27 Jul 2011

1 answer

84 views

Exporting hierarchical grid w/ visuals

Hi all,

I have a hierarchical grid that I am trying to export to excel using ExportToExcelML. Export Hierarchy is on and when I have ExportVisualSettings set to false, the export works perfectly in < 2 seconds. However when I turn the export visuals property on, the grid freezes and the form stops responding.

I have a few special visual components I use in my grid and I'm wondering if any of them may cause this behavior:
-Cells with BackColor set based on the value in the cell (values are hex rgb strings)
-DropdownColumns that also set the backcolor of each cell
-AlternatingRowcolor is set to true

Any ideas?
Alex

GridView

answered on 27 Jul 2011