Questions on UI for WinForms Forum

1 answer

194 views

Hello,

I saw in the asp.net/ajax online demo that you can put a checkbox in the header for a select all type of action. Can that be done for the winforms version? If so I have not been able to find it.

Thanks,

Warren

GridView

answered on 29 Aug 2013

1 answer

147 views

Telerik Editor sample

The samples for telerik Winforms controls have a sample for creating a full fledged rich text editor, but this sample is in C#. could you please help me withe VB.NET version? is there a sample for the TelerikEditor in VB.NET?

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 29 Aug 2013

10 answers

770 views

Adding some separator in the list

Hello,

Is there a way to put some separator (like in a menu) in a dropdownlist ?

I have tried to play with border of the RadListVisualItem but it doesn't look great. Got better result with font customisation :-)

The purpose of my dropdownlist is to select a filter value in a list with special item (No Filter, and Special value). The dropdownlist has not to be databound in my case (value are based on Enum). Filtering system behind is based on binary mask

NoFilter
-----------
Running Sale Process (Enum value 15)
Financial Dtp Sale Process (Enum valu 12)
-----------
Process Step 1 (Enum value 1)
Process Step 2 (Enum value 2)
Process Step 3 (Enum value 4)
Process Step 4 (Enum value 8)
-----------
Closed Sale Process (Enum value 0)

Thank for your advice

ListControl

answered on 29 Aug 2013

8 answers

1.7K+ views

Gridview doesn't update binding source current position

When sorting with rightclick->Descending/ascending, gridview doesn't update the current position of the binding source the first time. After that it works as it should. My sample is with 2011q2 but the behavior is the same with 2011q3.

video:http://dl.dropbox.com/u/521104/Telerik/TelerikGrid.mp4
sample:http://dl.dropbox.com/u/521104/Telerik/TestApp.7z

GridView

answered on 28 Aug 2013

1 answer

227 views

Radform/GridView Loading performance

Hi

My company has just purchased the Dev q2 2013 version after the trail.

In our project I configured a Excel 2010 Ribbon addin button to create/launch a Radform. The Radform contains a gridview which is configured at design time. The gridview has a datasource pointing to DB table containing about 3k rows (6 database columns + 1 checkbox columns). When the ribbon button is clicked the Radform will not appear for about 3-5secs. I am seeking advices on how can I speed it up. i have read the previous post on how to improve Radform performance but it doesnt seem to apply to my situation

1. is the delay caused by the theme (i used the metro theme) or loading the 3k records? (The 6 database columns each has cell value no more than 20 characters)?

2. is it recommended to assign the data source and initialize the grid during the form_load rather than Radform initialization? (will it give me a chance to show a loading animation?)

3. what options are available to show a small loading frame while the Radform with gridview is being initialized? i know i can add a background work to a winform to do work asynchronously. But at my case, i need a loading animation appear while the Radform is being initialized yet.

Any suggestion is appreciated.
zyw

GridView

answered on 28 Aug 2013

3 answers

274 views

Excel Export in existing excel file

Is it possible to export Gridview data to existing excel sheet with keeping headers intact & overwrite existing data?
if anyone know about this pls help me to solve the issue.thanks in advance.

GridView

answered on 28 Aug 2013

7 answers

372 views

Drag & Drop RadListView Icon

Hello, sorry my english, I need a help to solve the following question: I am wanting to do the Drag & Drop in RadListView, and the items are being displayed as radlist Icons, need to drag the icons between two radlist, there is this possibility?
I'm waiting Thanks

ListView

answered on 27 Aug 2013

1 answer

160 views

Checking/unchecking check boxes in multiple rows at once

I want the user to be able to do this:

User selects multiple rows
User clicks the check box in a check box column
If the check box clicked was unchecked before clicking then change the check boxes to checked in all selected rows, else change the check boxes to unchecked in all selected rows

The problem I am running into is that the selection seems to be cleared as soon as the check box is clicked. Can you suggest a solution that would accomplish this behavior?

GridView

answered on 27 Aug 2013

1 answer

96 views

Sorting is for single template in hierarchical GridView

Hi Team,
We have a requirement that in hierarchical GridView user should able to sort only current Expand Template(ChildGrid) records when there are multiple expanded template. so we are having issue to implement the functionality for 'Application should sort the selected or expanded child grid results only'.
I am attaching screenshots for reference.
Thanks
Dinesh

GridView

answered on 26 Aug 2013

1 answer

629 views

Treeview not showing child nodes added to data bound business object

I'm using 2013 Q2. I have a Treeview bound to a basic custom business object. My data source is of type BindingList<Company>. Each company has a BindingList of projects, and each Project has a BindingList of Phases:

class Company : INotifyPropertyChanged

{

private string _code;

private readonly BindingList<Project> _projects;

public Company(string companyCode):this(companyCode,null){}

public Company(string companyCode, IList<Project> projects)

{

_code = companyCode;

_projects = projects == null ? new BindingList<Project>() : new BindingList<Project>(projects);

}

public String Code

{

get { return _code; }

set

{

_code = value;

OnPropertyChanged("Code");

}

public BindingList<Project> Projects

{

get { return _projects; }

}

public event PropertyChangedEventHandler PropertyChanged;

// Create the OnPropertyChanged method to raise the event

protected void OnPropertyChanged(string name)

{

var handler = PropertyChanged;

if (handler != null)

{

handler(this, new PropertyChangedEventArgs(name));

}

class Project : INotifyPropertyChanged

{

private string _code;

private readonly BindingList<Phase> _phases;

public Project(string projectCode) : this(projectCode, null) { }

public Project(string projectCode, IList<Phase> phases)

{

_code = projectCode;

_phases = phases == null ? new BindingList<Phase>() : new BindingList<Phase>(phases);

}

public String Code

{

get { return _code; }

set

{

_code = value;

OnPropertyChanged("Code");

}

public BindingList<Phase> Phases

{

get { return _phases; }

}

public event PropertyChangedEventHandler PropertyChanged;

// Create the OnPropertyChanged method to raise the event

protected void OnPropertyChanged(string name)

{

var handler = PropertyChanged;

if (handler != null)

{

handler(this, new PropertyChangedEventArgs(name));

}

I've omitted the code for the Phase class, but it is similar.

I bound the data object like this:

_companiesTreeView.DataSource = _dataSource;

_companiesTreeView.DisplayMember = "Code\\Code\\Code";

_companiesTreeView.ChildMember = "Companies\\Projects\\Phases";

_companiesTreeView.ValueMember = "Code\\Code\\Code";

This mostly works as expected. Changes to my data objects at all levels are reflected in the tree. When I add a top level node (Company), it is also immediately reflected in the tree. However, when I add a child node (Project) to a company, the child node is not displayed unless I set the BindingSource to null and then back to my data source. I could do this as a workaround, but that would also require a lot of fiddling around to restore the state of all the nodes in the tree.

Is it possible for the binding to work as I would expect and display newly added child nodes in the tree?

ETA: Version number

Treeview

answered on 26 Aug 2013