Questions on UI for WinForms Forum

1 answer

170 views

Tabs not handled correctly when using HTML provoder

UPDATE: I fixed this by loading the html string directly instead of first converting to a byte array.

So this:

    string text = File.ReadAllText(@"c:\temp\RichText.txt");

    Byte[] convertedText = Encoding.ASCII.GetBytes(text);

    RadDocument document = _htmlFormatProvider.Import(convertedText);

became this:

    string text = File.ReadAllText(@"c:\temp\RichText.txt");

    RadDocument document = _htmlFormatProvider.Import(text);

When I save and reload using an HtmlFormatProvider I get strange results with Tab characters.

Here is an example where the original text is "a<tab>b<tab>c".

The first time it is saved it looks like this. The tabs have been replaced with two " ":
<style type="text/css">
.p_CC664AAA { margin: 0px 0px 12px 0px;text-align: left;text-indent: 0pt;padding: 0px 0px 0px 0px; }
.s_6BF1D20F { font-family: 'Calibri';font-style: normal;font-size: 16px;color: #000000; }
</style><p class="p_CC664AAA"><span class="s_6BF1D20F">a    b    c</span></p>

After reloading and saving again it looks like this. The two " " have been replaced with whitespace:
<style type="text/css">
.p_384D933F { margin: 0px 0px 0px 0px;text-align: left;text-indent: 0pt;padding: 0px 0px 0px 0px; }
.s_6BF1D20F { font-family: 'Calibri';font-style: normal;font-size: 16px;color: #000000; }
</style><p class="p_384D933F"><span class="s_6BF1D20F">a b c</span></p>

After reloading and saving again it looks like this. The whitespaces have been replaced with question marks:
<style type="text/css">
.p_384D933F { margin: 0px 0px 0px 0px;text-align: left;text-indent: 0pt;padding: 0px 0px 0px 0px; }
.s_6BF1D20F { font-family: 'Calibri';font-style: normal;font-size: 16px;color: #000000; }
</style><p class="p_384D933F"><span class="s_6BF1D20F">a? ? b? ? c</span></p>

Here is the sample code I am using for this test:

public Form1()
{
    InitHtmlFormatProvider();
    InitializeComponent();
}
 
private static HtmlFormatProvider _htmlFormatProvider;
 
private static void InitHtmlFormatProvider()
{
    _htmlFormatProvider = new HtmlFormatProvider();
    var htmlExportSettings = new HtmlExportSettings();
    htmlExportSettings.DocumentExportLevel = DocumentExportLevel.Fragment;
    _htmlFormatProvider.ExportSettings = htmlExportSettings;
}
 
private void commandBarButtonLoad_Click(object sender, EventArgs e)
{
    string text = File.ReadAllText(@"c:\temp\RichText.txt");
    Byte[] convertedText = Encoding.ASCII.GetBytes(text);
    RadDocument document = _htmlFormatProvider.Import(convertedText);
    radRichTextBox1.Document = document;
}
 
private void commandBarButtonSave_Click(object sender, EventArgs e)
{
    string html = _htmlFormatProvider.Export(radRichTextBox1.Document);
    File.WriteAllText(@"c:\temp\RichText.txt", html);            
}

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 09 Jan 2013

1 answer

128 views

Timeline Drag and Drop - Product Evaluation

Hi,
I am playing around with your controls to see if it meets our needs.
Right now I cannot seems to drag and drop from external source into the scheduler in TimeLineView.
On this line :
Dim table As DayViewAppointmentsTable = (TryCast(Me.RadScheduler1.SchedulerElement.ViewElement, SchedulerDayViewElement)).DataAreaElement.Table
the code stops and I got the error
Object Reference is not set to an instance of object
Right now I am following the drag and drop sample.
This is one aspect really important but futhermore I would like to know if it is possible to have this scenario with your control in timeline view

We got let say 3 Team which are our main ressources. In the schedule with got appointment. I want to drag and drop those appointement from external source (which seems possible). What is tricky is that I also want to drag and drop employee on the Team (ressouces line) to add them on this team (or maybe on the appointment)
Is it possible with the RadScheduler Control ?

Thanks

Scheduler and Reminder

answered on 09 Jan 2013

2 answers

373 views

[Solved] GridViewCheckBoxColumn displays True/False instead of check box when deriving GridViewRowInfo

I have an issue with RadControls for WinForms Q3 2012 where calling Rows.Add with an instance of a type inheriting from GridViewRowInfo causes the value in a GridViewCheckBoxColumn to display True/False instead of a check box. The following illustrates the issue:

using Telerik.WinControls.UI;

namespace TestApp {

partial class MainForm : RadForm {

public MainForm() {

InitializeComponent();

ItemGrid.Rows.Add(new CustomRowInfo(ItemGrid, "Item #1", true));

ItemGrid.Rows.Add(new CustomRowInfo(ItemGrid, "Item #2", false));

}

private class CustomRowInfo : GridViewRowInfo {

public CustomRowInfo(RadGridView owner, string text, bool enabled)

: base(owner.MasterView) {

Cells[0].Value = text;

Cells[1].Value = enabled;

}

public string Text {

get { return Cells[0].Value.ToString(); }

set { Cells[0].Value = value; }

}

public bool Enabled {

get { return (bool) Cells[1].Value; }

set { Cells[1].Value = value; }

}

What am I doing wrong?
Thanks.

GridView

answered on 09 Jan 2013

3 answers

95 views

Problem with ungrouping

If you group data with property builder, you cannot ungroup it with same procedure - you have to go to group descriptors on delete it from there.

GridView

answered on 09 Jan 2013

1 answer

342 views

Modifying theme properties at runtime.

I have developed a custom theme for WinForms (2012.3.1211.40) and am very happy with it.

However, I have one small requirement for a background color change (RadButton) on hover. I would hate to copy the theme (and manage 2 different themes) for this small request.

I found "ButtonElement" and "RootElement" properties on the RadButton. How do I modify values (lets say, a background color) for different states, particularly, the hover state?

Thanks in advance!

GridView

answered on 09 Jan 2013

1 answer

171 views

string[] property order

I have a property of type string[]. If you open the String Collection Editor the items are in the correct order, but when you expand the collection in the PropertyGrid the items appear to be in a random order (instead of being displayed as 0..n).

I am using RadControls for WinForms Q2 2012 SP1.

PropertyGrid

answered on 09 Jan 2013

2 answers

341 views

[Solved] Set focus to control on wizard page

on my rad wizard pages there are dynamically generated radiobuttons.
is it possible to navigate those buttons with the arrow keys and use the enter key to go to the next page?
By default the focus is on the 'Next' button when entering a page, is this changeble?

Wizard

answered on 08 Jan 2013

1 answer

459 views

[Solved] Import Excel to corresponding defined columns of gridview

Hello Team

I have a requirement where i have radgridview which is having 5 predefined columns , i need to upload data into these fields from excel

i have used the following code to populate the columns from excel, but they are adding next to the predefined columns, i need to map the grid columns to excel columns, how can i achieve this

excel

i need to populate the above values (with out headertext ) from excel into the corresponding columns of grid,

from the above code i am adding auto generate columns to grid, but i want these data to be populated in the corresponding columns any help????

GridView

answered on 08 Jan 2013

1 answer

210 views

CompositionContractMismatchException on Cut, Copy, Paste

UPDATE: I solved this problem. It was caused by referencing a local Telerik dll in my project while at the same time having a different Telerik version installed. I'm assuming the Control was getting a mismatch between the local dll and one from the GAC.

I'm using an HtmlFormatProvider to store and retrieve text as HTML. I implemented the Cut, Copy, Paste controls by implementing a click handler on the toolbar button and calling the corresponding method on my private RadRichTextbox. When the Cut method is called it throws this exception:

Cannot cast the underlying exported value of type 'Telerik.WinControls.RichTextBox.FileFormats.Html.HtmlFormatProvider (ContractName="Telerik.WinControls.RichTextBox.FormatProviders.IDocumentFormatProvider")' to type 'Telerik.WinControls.RichTextBox.FormatProviders.IDocumentFormatProvider'.

Any suggestion would be much appreciated.

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 08 Jan 2013

1 answer

164 views

How to load only layout

Hi,

I derived some windows from the ToolWindow class and added some special controls on it (i.e. Treeview).
Now I want to add the windows to the RadDock and then only load the layout.
How can I do this?

Regards
Marco

Dock

answered on 08 Jan 2013