Questions on UI for WinForms Forum

1 answer

75 views

Printing : No Data in first page but not next page

Hello,

For a developpment in my company, I need to print a list of data document by date with new header and new grid when there is new date

It's important : No need grouping

When I'm printing a test page, First Page is OK but not next page, There is header of grid but not data of grid by date

No bug in my code, just no data in printing preview

Printing Page 1

Printing Page 3

See my demo test project in file-attach => button of test is right-top (small button)

Link of downloading : TelerikWinFormsApp1

Do you know this issue ?

if yes, how solve it ?

GridView

answered on 13 Apr 2017

1 answer

293 views

Trackbar Value Changed

Hi There,

I have a trackbar on which a number of (slow) actions are performed after the value has changed/changes.

Now, the value_changed event is fired even if I have my mouse down. Is there a possibility that the actual value changes áfter I release my mousebutton so the trackbar responds much quicker.

Kind regards

Victor

TrackBar

answered on 13 Apr 2017

3 answers

279 views

[Solved] Working ESRI Winform Example

Hello folks - I am attempting to make a project similar to the "theatre" demo that is part of the Winform Demos for Map / ESRI Shapefiles. I have extracted all the code from the ExamplesCSVS2010 project file, and made a local copy of the theatre seating data. It appears to be loading the ESRI files properly, I can inspect the map object and it appears to have all the objects in it, but I just do not SEE anything on my form.

Is there a working standalone example anywhere? Everything I have found on the forums is for outdated Silverlight, nothing for winform. Seems like everything is there, but just missing this piece. Any ideas? Happy to post my current project, etc.for review, if that helps at all.

Map

answered on 13 Apr 2017

3 answers

285 views

how to detect a mouse click on a radPageViewStripItem

I don't see an event for when a mouse-click occurs on a radPageViewStripItem. I need to know when a user clicks on this element regardless if the pageview has been changed. (see screenshot)

PageView

answered on 11 Apr 2017

2 answers

185 views

Size is always 0 on LightVisualElement

I have an Element that Inherits from LightVisualElement. In CreateChildElements I add three controls - StackLayoutPanel, Image and Label - however the Size is always 0 which causes problems in another controller where I try to stack several Elements together.

Why is the Size 0?

When is the Size initialized?

protected override void CreateChildElements()

{

base.CreateChildElements();

mainPanel = new StackLayoutPanel();

mainPanel.Orientation = System.Windows.Forms.Orientation.Horizontal;

checkBox = new LightVisualElement();

checkBox.DrawText = false;

checkBox.ImageLayout = System.Windows.Forms.ImageLayout.Center;

checkBox.ShouldHandleMouseInput = false;

checkBox.NotifyParentOnMouseInput = true;

mainPanel.Children.Add(checkBox);

label = new RIOLabelElement();

label.TextAlignment = ContentAlignment.TopCenter;

label.Font = new System.Drawing.Font("Segoe UI", 8, FontStyle.Italic, GraphicsUnit.Point);

label.ShouldHandleMouseInput = false;

label.NotifyParentOnMouseInput = true;

mainPanel.Children.Add(label);

this.Children.Add(mainPanel);

}

General Discussions

answered on 11 Apr 2017

1 answer

203 views

[Solved] Nested PageView

I am dynamically adding tabs to a pageview. How can I add subtabs?

When I click on a tab, I need the tabs within the top tab to show.

Here is the code I have. The first set of tabs work. Can't figure how to add child tabs

//create a tab for each line

DataTable dt = GetLines();

if (dt.Rows.Count > 0)

{

foreach (DataRow row in dt.Rows)

{

RadPageViewPage newLine = new RadPageViewPage();

newLine.Text = row["DEPARTMENT_DESCRIPTION"].ToString();

pvMain.Pages.Add(newLine);

//get the list of what runs on each line (by Department_id)

DataTable dtLines = GetLineDepartments(Convert.ToInt16(row["DEPARTMENT_ID"].ToString()));

if (dtLines.Rows.Count > 0)

{

foreach (DataRow rowDept in dtLines.Rows)

{

// add depts tabs to the line

RadPageViewPage newDept = new RadPageViewPage();

newDept.Text = rowDept["LINE_DESCRIPTION"].ToString();

//newLine.Controls.Add(newDept); //how do I add to the newline RadPageViewPage

newLine.

}

PageView

answered on 11 Apr 2017

11 answers

849 views

GridView CellEndEdit Add New Row

Hi

How I have to add new row on cell end edit. I have 10 columns in the gridview, after particular cell end edit and pressing tab key i should add a new row.

I tried ProcessTab Key and it is not working.

Please let me know how i can achieve this.

Thanks in advance.

Regards

Gopinath

GridView

answered on 11 Apr 2017

2 answers

99 views

Add buttons near Collapse button

Hi is there a way to add buttons near a collapse button in ribbon bar (see picture for more detail)?

Thank you :)

RibbonBar

answered on 10 Apr 2017

4 answers

257 views

Radscrollablepanel scrolls up automatically

Hello,

I have this annoying issue about the radscrollablepanel, what i do is inside the scrollablepanel i put a radgridview on it.
When the gridview is populated the radscrollablepanel adjust and works well, but the issue is when you scroll at the middle or bottom part
of gridview and click on row or cell. It automatically scrolls you up into the top instant and by that you cant edit something in rows which you have scrolled.
Is there any ways to stop the scrollablepanel in scrolling automatically?

ScrollablePanel

answered on 10 Apr 2017

4 answers

1.9K+ views

[Solved] Save and load to xml using MemoryStream

Hi

I'm trying to save and load a RadDock layout to a database field using a MemoryStream but the code fails on loading the layout with error 'System.Xml.XmlException: Data at the root level is invalid. Line 1, position 1.'

I have very similar code to save and load layouts for RadDock and it works. Also I can save and load dock layouts if I use xml files but I don't want to use them.

I'm using Progress OpenEdge andthese are code snippets for saving and loading the layout.

METHOD PRIVATE VOID SaveDockLayout( ):
    DEF VAR l_MemoryStream AS System.IO.MemoryStream   NO-UNDO.
    DEF VAR l_UTF8Encoding AS System.Text.UTF8Encoding NO-UNDO.
    DEF VAR lc_char        AS LONGCHAR                 NO-UNDO.

    ASSIGN
        l_MemoryStream = NEW System.IO.MemoryStream()
        l_UTF8Encoding = NEW System.Text.UTF8Encoding()
        .
    radDock1:SaveToXml(l_MemoryStream).
    lc_char = l_UTF8Encoding:GetString(l_MemoryStream:ToArray()).
    COPY-LOB FROM lc_char TO tt_stored_layout.layout.

    l_MemoryStream:Close().
    l_MemoryStream = ?.
    DELETE OBJECT l_MemoryStream NO-ERROR.
    DELETE OBJECT l_UTF8Encoding NO-ERROR.

END METHOD.

METHOD PRIVATE VOID LoadDockLayout( ):
    DEF VAR l_MemoryStream AS System.IO.MemoryStream   NO-UNDO.
    DEF VAR l_UTF8Encoding AS System.Text.UTF8Encoding NO-UNDO.
    DEF VAR lc_char        AS LONGCHAR                 NO-UNDO.

    COPY-LOB FROM tt_stored_layout.layout TO lc_char.

    ASSIGN
        l_UTF8Encoding = NEW System.Text.UTF8Encoding()
        l_MemoryStream = NEW System.IO.MemoryStream(l_UTF8Encoding:GetBytes(lc_char), 0, l_UTF8Encoding:GetByteCount(lc_char))
        .
    radDock1:SuspendLayout().
    radDock1:LoadFromXml(l_MemoryStream).
    radDock1:ResumeLayout().

    l_MemoryStream:Close().
    l_MemoryStream = ?.
    DELETE OBJECT l_MemoryStream NO-ERROR.
    DELETE OBJECT l_UTF8Encoding NO-ERROR.

END METHOD.

Can you help or give me an example of using a method to save and load dock layouts withouth resorting to xml files?

Kind regards

Tung

Dock

answered on 07 Apr 2017