Questions on UI for WinForms Forum

1 answer

71 views

binding

Hello,

I am having trouble trying to figure out the binding and I am not sure if it is possible.

I have a base node with several child nodes and within those child nodes I need to add additional child nodes.

I have managed to bind the first level child nodes, but I cannot figure out how to add the additional child nodes.

Below is a sample.

Thank you,

Chom

IList<Project> project = new List<Project>();

IList<Topic> topic = new List<Topic>();

IList<Cloud> cloud = new List<Cloud>();

IList<Trend> trend = new List<Trend>();

IList<Schedule> schedule = new List<Schedule>();

cloud.Add(new Cloud { Name = "cloud1" });

cloud.Add(new Cloud { Name = "cloud2" });

trend.Add(new Trend { Name = "trend 1" });

trend.Add(new Trend { Name = "trend 2" });

schedule.Add(new Schedule { Name = "sched 1" });

schedule.Add(new Schedule { Name = "sched 2" });

topic.Add(new Topic { Name = "Clouds", CloudAssociation = cloud });

topic.Add(new Topic { Name = "Trends", TrendAssociation = trend });

topic.Add(new Topic { Name = "Schedules", ScheduleAssociation = schedule });

//Project.

project.Add(new Project { Name = "My Project", TopicAssociation = topic });

radTreeView1.DisplayMember = "Name\\Name\\Name";

radTreeView1.ParentMember = "Project\\TopicAssociation";

radTreeView1.ChildMember = "Project\\TopicAssociation\\CloudAssociation";

radTreeView1.DataSource = project;

Treeview

answered on 03 Oct 2013

0 answers

226 views

Zoom in radChartView

I would want that area of ChartElement was fixed and I was able to move an ChartElement

when using the zoom. How I can do it?

class Zoom

{

static double horizontalScale = 1;

static double verticalScale = 1;

public static double HorizontalScale

{

get

{

return horizontalScale;

}

set

{

horizontalScale = Math.Max(1, value);

}

public static double VerticalScale

{

get

{

return verticalScale;

}

set

{

verticalScale = Math.Max(1, value);

}

private void radChartViewAnalysis_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)

{

Zoom.HorizontalScale += e.Delta / 3000.0;

Zoom.VerticalScale += e.Delta / 3000.0;

radChartViewAnalysis.ChartElement.View.Zoom(Zoom.HorizontalScale, Zoom.VerticalScale);

}

ChartView

asked on 03 Oct 2013

7 answers

160 views

Oracle form and data

I would like to view pdf documents in the RadPDFViewer that are composed of the form which is stored in an Oracle database as a blob and data which is also stored in oracle as xml text files. The forms were developed in Adobe LiveCycle.
Thank you for your help.
Mick Mathews

PdfViewer and PdfViewerNavigator

answered on 03 Oct 2013

1 answer

99 views

Drop Down List using Interface

Does RadDropDownList support List of Interface as its Data Source?

I have a problem when using one, error is thrown when setting the display member of the drop down list.

I have an Interface, let's say

public interface

IBase

{

string Name { get; set; }

}

and this is used in 2 classes

public class First : IBase

{

public string Name { get; set; }

}

public class Second : IBase

{

  public string Name { get; set; }

}

Now when I try to populate a drop down list using these classes, I get the error of
Property accessor 'Name' on object 'TestWinForm.Second' threw the following exception:'Object does not match target type.'

I tried to populate this by

private void button5_Click(object sender, EventArgs e)

{

IList<First> tests = new List<First>();

First test = new First();

test.Name = "Test1";

tests.Add(test);

First test2 = new First();

test2.Name = "Test2";

tests.Add(test2);

IList<Second> tests2 = new List<Second>();

Second test22 = new Second();

test22.Name = "Test12";

tests2.Add(test22);

Second test222 = new Second();

test222.Name = "Test22";

tests2.Add(test222);

IList<IBase> all = new List<IBase>();

foreach(var item in tests)

{

all.Add(item);

}

foreach(var item in tests2)

{

all.Add(item);

}

radDropDownList1.DataSource = all;

radDropDownList1.DisplayMember = "Name";

}

Any idea why ?

DropDownList

answered on 02 Oct 2013

3 answers

219 views

in RowValidating, e.Row.IsModified doesnt show as true, when it should

Hi, I have a GridView.

when I make a change in a cell of one row, and then I select to add a new row the event grid_RowValidating its fier but when I do e.Row.IsModified I always get FALSE.

Only if I press in other row before I press to add a new row to the grid.

private void grid_RowValidating(object sender, RowValidatingEventArgs e)

{

if (e.Row == null) return;

if (!e.Row.IsModified) return;

}

the way to reproduce this is.

- Edit a cell from the gridView.
- Click to add new Row

e.Row.Index indicate that its checking the row I just edited where i change some value, so it should show me that there is a change.
I also tried adding the event RowChanged but didnt work

private void grdPirteyMenahel_RowsChanged(object sender, GridViewCollectionChangedEventArgs e)

      {

          grid.EndEdit();

      }

GridView

answered on 02 Oct 2013

6 answers

256 views

Naming Tabbed Childview in Hierarchical Gridview

I have a gridview with two relations, and I really like how it puts the childrows of the two relations in the childview into two tabs. However, each of the tabs is named "table". How do I change the text on those tabs? I'm using VB .NET, version 4 or 4.5

Preferably, I'd like to do this outside of the viewcellformatting event. Is it possible to get to this through the gridview object itself

I can programmatically set IsExpanded, but how do I then tell it which tab to open at the same time?

Thanks!

GridView

answered on 02 Oct 2013

3 answers

92 views

AutoCompleteBox

For the AutoCompletebox is there an undo method? Typically pressing the ESC key will return the control to it's original state.

Thanks!

AutoCompleteBox

answered on 02 Oct 2013

0 answers

129 views

Databinding to multicolumn combobox isn't working

I have tried binding to a multicolumn combobox with no success. It works fine with checkboxes and textboxes. Here is the code i'm using

DataTable dtAct = new DataTable();

BindingSource bsAct = new BindingSource();

//dtAct is populated by a query from my db.

bsAct.DataSource = dtAct;

bsAct.Position = 0;

/*

GetSupCat() returns

value text

1 Test1

2 Test2

3 Test3

*/

cbMainActSupCat.DataSource = GetSupCat(); //Procedure that returns a datatable with the data to populate the combobox

cbMainActSupCat.DisplayMember = "value";

cbMainActSupCat.ValueMember = "value";

cbMainActSupCat.DataBindings.Add(new Binding("SelectedItem", bsAct, "SupCat"));

//SupCat comes from bindingsource from my original query

The combobox should show the value of "SupCat". When I bind it to a textbox it shows me the number 2, but the combo still shows the first item 1.

Thank you for any help you can give me. This is an important part of my application.

MultiColumn ComboBox

asked on 02 Oct 2013

3 answers

864 views

GridViewTextBoxColumn Only Numbers Allowed

Hello,

I am using Radgridview and i have N number of Columns. While doing Add/Edit a row, on a particular column user should allow only numbers(0 to 10) to type/fill. The user can also copy paste on this cell/column in that case it should only allow to paste numbers.
Can any one help me on this?

Thanks & Regards
Rams

GridView

answered on 02 Oct 2013

3 answers

119 views

CurrentRow

I have a problem with getting CurrentRow Index.

private void myRadGridView_DefaultValuesNeeded(object sender, Telerik.WinControls.UI.GridViewRowEventArgs e)

{

int index = e.Row.Index;

int index2 = this.myRadGridView.CurrentRow.Index;

}

Both ways give me one result: -1
My GridView is bound with dataSet.
How can I get CurrentRow Index in DefalutValuesNeeded event?

Help for thanks.

Kuba

GridView

answered on 01 Oct 2013