Questions on UI for WinForms Forum

4 answers

439 views

Hi,

I have two date pickers:
FROM and TO.

I'd like to know if the two dates are further than 3 days apart. How do I do this comparison? Is there a more efficient way than this?

var date = datePickerFrom.GetDate();
date.setDate(date.getDate() + 3);

var toDate = datePickerTo.GetDate();

if( toDate <= date )
.....

Thanks for your help.
PKd

Calendar, DateTimePicker, TimePicker and Clock

answered on 16 Jan 2008

1 answer

138 views

readability when disabled

I'm working in an app that uses a "rowcard" format, when a row is selected there's a rowcard that is disabled that shows the details of the row. The GridView control is virtually impossible to read when it is disabled. Any suggestions for fixing this? The only thing I have so far is to not make the GridView's container disabled, but that's a pretty large and time consuming change. Most other windows controls are fine to read when they are disabled, but the GridView is not. Suggestions?

GridView

answered on 16 Jan 2008

1 answer

146 views

GridViewBooleanColumn: error with SelectionMode set to CellSelect

WinForms RadControl Q3 2007

When I set SelectionMode to GridViewSelectionMode.CellSelect columns GridViewBooleanColumn don't save data and event ValueChanged doesn't fire.
With SelectionMode to FullRowSelect work fine!

Thanks in advance,
Emanuele Savarese

This is sample code to reproduce error:

    
                    private void Form1_Load(object sender, EventArgs e) 
        
                    { 
        
                        DataTable dt = new DataTable(); 
        
                        dt.Columns.Add("From", typeof(bool)); 
        
                        dt.Columns.Add("To", typeof(bool)); 
        
                        dt.Columns.Add("Description", typeof(string)); 
        
                        dt.Rows.Add(false, false, "hi1"); 
        
                        dt.Rows.Add(false, false, "hi2"); 
        
                        dt.Rows.Add(false, false, "hi3"); 
        
                        dt.Rows.Add(false, false, "hi4"); 
        
                        dt.Rows.Add(false, false, "hi5"); 
        
                        dt.Rows.Add(false, false, "hi5"); 
        
                        dt.Rows.Add(false, false, "hi6"); 
        
                        radGridView1.MasterGridViewTemplate.AutoGenerateColumns = false; 
        
                        radGridView1.Columns.Add(new GridViewBooleanColumn("From")); 
        
                        radGridView1.Columns[0].IsPinned = true; 
        
                        radGridView1.Columns.Add(new GridViewBooleanColumn("To")); 
        
                        radGridView1.Columns[1].IsPinned = true; 
        
                        radGridView1.Columns.Add(new GridViewTextBoxColumn("Description")); 
        
                        radGridView1.Columns[2].ReadOnly = true; 
        
                        radGridView1.SelectionMode = GridViewSelectionMode.CellSelect; 
        
                        radGridView1.DataSource = dt; 
        
                    }

GridView

answered on 15 Jan 2008

10 answers

165 views

Problem error with PanelBar and Gallery Component combination.

i'm getting a weird error message when using your gallery component in combination with a panelbar groupelement that is set with EnableHostControlMode to true.

the project compiles and runs fine, but this error pops up however many times you have EnableHostControlMode set to true.

the error reads:
Error setting property "EnableHostControlMode" in class "Telerik.WinControls.UI.RadPanelBarGroupElement" to value "True".

it goes on to say that the element has already been added.

thanks guys...

06/06/07 - UPDATE
i was able to eliminate this error by toggling the said property to false, then toggle back to true through code.

why would there be such an issue with this, and a few other controls, to where the design time functionality acts flaky at times?

overall though, i'm liking the product thus far....

thanks.....

Panelbar (obsolete as of Q2 2010)

answered on 15 Jan 2008

1 answer

244 views

How to get some properties from theme

Is there a way to read some properties of selected theme (e.g background color of selected cells or any other property)?

Thanks in advance

GridView

answered on 15 Jan 2008

1 answer

97 views

ComboBox (Q3 2007) won't change BackColor

When I set the BackColor of a ComboBox it doesn't change the appearance at design-time nor at runtime. Any ideas?

Josh

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 14 Jan 2008

1 answer

158 views

Multi column support, WHEN?

When Telerik win combobox will provide multiple column support? I did not see this feature in latest release. This is really important feature in our legacy system, and to me it's really basic. I have to decide soon how we want to landle it in new .net appication.

I see much more features in web controls than win and I am really disappointed at this stage. Any suggestions, alternates, or plan to provide this feature in next release?

MultiColumn ComboBox

answered on 14 Jan 2008

6 answers

235 views

Customize Ctrl+Tab feature

Hi all,

this is my question,
if I press Ctrl+Tab, I can browse through the opened documents/panels.
I can disable this feature by "dockingManager.UseQuickNavigator = false" property); I would like to assign this shortcut key (Ctrl+tab) to a custom function written by me, but I'm not able to catch this event (Ctrl+tab does not reach the keydown event).

How can I assign the Ctrl+tab shortcut to a function written by me?

Thanks in advance for the answer.

Stefano

Dock

answered on 14 Jan 2008

2 answers

163 views

Pinned transparent columns collateral effect

WinForms RadControls Q3 2007
Visual Studio 2005
.NET 2.0

I want two columns pinned and I set IsPinned property to true.
When I scrolling grid content of other columns slide under pinned colums.
I tried to create a new Theme and set backcolor of GridRowElement (root/element) with Telerik Visual Style Builder but I nothing changed.

I created a conditional formatting to force backcolor to white, but in this way I lose borders of row selection.

Any better idea?
Thanks in advance,
Emanuele Savarese

This is code to reproduce error. Uncomment rows to view my solution with conditional formatting.

    
                    private void Form1_Load(object sender, EventArgs e) 
        
                    { 
        
                        DataTable dt = new DataTable(); 
        
                        dt.Columns.Add("From", typeof(bool)); 
        
                        dt.Columns.Add("To", typeof(bool)); 
        
                        dt.Columns.Add("Description", typeof(string)); 
        
                        dt.Rows.Add(false, false, "hi1"); 
        
                        dt.Rows.Add(false, false, "hi2"); 
        
                        dt.Rows.Add(false, false, "hi3"); 
        
                        dt.Rows.Add(false, false, "hi4"); 
        
                        dt.Rows.Add(false, false, "hi5"); 
        
                        dt.Rows.Add(false, false, "hi5"); 
        
                        dt.Rows.Add(false, false, "hi6"); 
        
                        radGridView1.MasterGridViewTemplate.AutoGenerateColumns = false; 
        
                        radGridView1.Columns.Add(new GridViewBooleanColumn("From")); 
        
                        radGridView1.Columns[0].IsPinned = true; 
        
                        radGridView1.Columns.Add(new GridViewBooleanColumn("To")); 
        
                        radGridView1.Columns[1].IsPinned = true; 
        
                        radGridView1.Columns.Add(new GridViewTextBoxColumn("Description")); 
        
                        radGridView1.Columns[2].ReadOnly = true; 
        
                        radGridView1.Columns[2].Width = 1000; 
        
                        //ConditionalFormattingObject item = new ConditionalFormattingObject("ruleName", 
        
                        //    ConditionTypes.LessOrEqual, "aa", string.Empty, true); 
        
                        //item.CellBackColor = Color.White; 
        
                        //item.RowBackColor = Color.White; 
        
                        //radGridView1.Columns[0].ConditionalFormattingObjectList.Add(item); 
        
                        //item = new ConditionalFormattingObject("ruleName", 
        
                        //    ConditionTypes.LessOrEqual, "aa", string.Empty, true); 
        
                        //item.CellBackColor = Color.White; 
        
                        //item.RowBackColor = Color.White; 
        
                        //radGridView1.Columns[1].ConditionalFormattingObjectList.Add(item); 
        
                        radGridView1.SelectionMode = GridViewSelectionMode.FullRowSelect; 
        
                        radGridView1.DataSource = dt; 
        
                    }

GridView

answered on 14 Jan 2008

1 answer

153 views

the office2007 ColorMenu

how can i mimic the office2007 ColorMenu?

the image
http://picasaweb.google.com/chaco.zhao/Question/photo#5155168280711845058

thank you

ps: I implement ColorMenu in the way of RadGralleryElement, but fail.

RibbonBar

answered on 14 Jan 2008

	private void Form1_Load(object sender, EventArgs e)
	{
	DataTable dt = new DataTable();
	dt.Columns.Add("From", typeof(bool));
	dt.Columns.Add("To", typeof(bool));
	dt.Columns.Add("Description", typeof(string));

	dt.Rows.Add(false, false, "hi1");
	dt.Rows.Add(false, false, "hi2");
	dt.Rows.Add(false, false, "hi3");
	dt.Rows.Add(false, false, "hi4");
	dt.Rows.Add(false, false, "hi5");
	dt.Rows.Add(false, false, "hi5");
	dt.Rows.Add(false, false, "hi6");

	radGridView1.MasterGridViewTemplate.AutoGenerateColumns = false;
	radGridView1.Columns.Add(new GridViewBooleanColumn("From"));
	radGridView1.Columns[0].IsPinned = true;
	radGridView1.Columns.Add(new GridViewBooleanColumn("To"));
	radGridView1.Columns[1].IsPinned = true;
	radGridView1.Columns.Add(new GridViewTextBoxColumn("Description"));
	radGridView1.Columns[2].ReadOnly = true;
	radGridView1.Columns[2].Width = 1000;

	//ConditionalFormattingObject item = new ConditionalFormattingObject("ruleName",
	// ConditionTypes.LessOrEqual, "aa", string.Empty, true);
	//item.CellBackColor = Color.White;
	//item.RowBackColor = Color.White;
	//radGridView1.Columns[0].ConditionalFormattingObjectList.Add(item);

	//item = new ConditionalFormattingObject("ruleName",
	// ConditionTypes.LessOrEqual, "aa", string.Empty, true);
	//item.CellBackColor = Color.White;
	//item.RowBackColor = Color.White;
	//radGridView1.Columns[1].ConditionalFormattingObjectList.Add(item);

	radGridView1.SelectionMode = GridViewSelectionMode.FullRowSelect;
	radGridView1.DataSource = dt;
	}