Questions on UI for WinForms Forum

4 answers

358 views

Hello,

is there a way to change the width of specific GridViewIndentColumns? I'm trying to hide the very first IndentColumn in a Grid with 2 group levels. So far i tried changing one (or a combination) of the following 3 properties without any success:

private void GridView_ViewCellFormatting(object sender, CellFormattingEventArgs e)

{

var indentColumn = e.CellElement.ColumnInfo as GridViewIndentColumn;

if (indentColumn != null)

{

switch (indentColumn.IndentLevel)

{

case 0:

e.CellElement.Size = new Size(0,e.CellElement.Size.Height);

indentColumn.Width = 0;

e.CellElement.Visibility = ElementVisibility.Collapsed;

return;

case 1:

indentColumn.Width = 20;

e.CellElement.Size = new Size(20, e.CellElement.Size.Height);

e.CellElement.Visibility = ElementVisibility.Visible;

break;

}

GridView

answered on 24 Feb 2016

2 answers

162 views

Open Dialog empty

Hi,

By inserting a radial gauge on my Form, the gallery is empty and I cannot select any type of gauge.

I have run the upgrade wizard for Winform and manually added the controls I want into the toolbox.

Why is the gallery empty ?

Thans for your help

Gauges (RadialGauge, LinearGauge, BulletGraph)

answered on 24 Feb 2016

12 answers

376 views

Can't display null date items in GanttView

Hello Support,
I have a datasource to bind in GanttView. Some of my items have no start date and end date. By default, ganttView doesn't display the null date items.
May you please help me t display them in the Ganttview?

GanttView

answered on 23 Feb 2016

2 answers

519 views

RadGridView.CurrentCellChanged Event

Documentation says "Fires after the current cell has changed", but it seems to that it is giving me the cell address of the previously selected cell. Is there some event that I can get that actually gives me the cell AFTER it has changed?

GridView

answered on 23 Feb 2016

0 answers

141 views

Fill textbox from MCCB

Helloo all ...

How to fill textbox from MCCB selected to textbox ...

thanks

MultiColumn ComboBox

asked on 23 Feb 2016

3 answers

137 views

HtmlViewDefinition Header Row Height

Hi,

I have a HtmlViewDefinition that is added to a grid so as to provide detail information for a row, similar to your example in http://www.telerik.com/help/winforms/gridview-overview.html except I only have a single row defined in the HtmlViewDefinition

This works OK, but I need to enable column headers which I do by setting

template.ShowColumnHeaders = True

and then for each column setting

template.Columns(column.FieldName).HeaderText

This seems to enable the headers OK and they are displayed but I have a problem with the header row height. It appears to consume the entire row height for the HtmlViewDefinition.RowTemplate.Row I have added and I can't find a way to modify it.

Is there a way to change the header row height?

Thanks,

Mark.

GridView

answered on 22 Feb 2016

0 answers

228 views

CommandBarToggleButton appearance when disabled

I'm posting this for anyone who comes across this same issue.

As of Q1 2015 SP1, the CommandBarToggleButton has been changed with respect to how it behaves when disabled. If you want toggle buttons to look the same as regular buttons when disabled, you need to set the UseDefaultDisabledPaint property to true and also handle the EnabledChanged event to turn off or on the DrawBorder and DrawFill properties.

private void toggleSelectMode_EnabledChanged(object sender, EventArgs e)
{
((Telerik.WinControls.UI.CommandBarToggleButton)sender).DrawBorder = ((Telerik.WinControls.UI.CommandBarToggleButton)sender).Enabled;
((Telerik.WinControls.UI.CommandBarToggleButton)sender).DrawFill = ((Telerik.WinControls.UI.CommandBarToggleButton)sender).Enabled;
}

Without these steps, when you disable a toggle button you'll see one or all of the following

the buttons stay in color (not grayed out)
the border of the button visible
the background of the button go gray instead of just the icon

In the attached image, all of the command bar buttons have Enabled set to false. The controls look as expected except for the toggle buttons. If you follow the steps given in this post, they'll look as expected too.

Good luck all!

Chris

CommandBar

asked on 19 Feb 2016

2 answers

250 views

Editable Checkbox in GridViewTemplate

Hi everyone. We have a child grid that is bound to data as requested. We have added a GridViewCheckBoxColumn to the row, but we can't seem to edit it?

Here we set the child element:

grdCustomers.DataSource = contact.GetList(true, 0);

grdCustomers.Templates.Add(CreateChildTemplate());

The CreateChildTemplate method looks like this:

private GridViewTemplate CreateChildTemplate()

{

var template = new GridViewTemplate();

template.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

template.AllowEditRow = true;

template.ReadOnly = false;

var select = new GridViewCheckBoxColumn("CheckBox");

var field1 = new GridViewTextBoxColumn("Field1");

var field2 = new GridViewTextBoxColumn("Field1");

select.ReadOnly = false;

select.DataType = typeof(bool);

select.EditMode = EditMode.OnValueChange;

template.Columns.AddRange(select, field1, field2);

return template;

}

Then we bind the data to the child grid

var row = e.Template.Rows.NewRow();

row.Cells["Field1"].Value = dataRow.Field1;

row.Cells["Field2"].Value = dataRow.Field2;

row.Cells["Select"].Value = dataRow.Select;

row.Cells["Select"].ReadOnly = false;

e.SourceCollection.Add(row);

No watter what we have tried, we can't get the checkbox to be editable?

Please advise.

Thank you.

GridView

answered on 19 Feb 2016

1 answer

339 views

DateTimePicker checkbox databinding

Hello,

I have been trying to bind two properties to datetimepicker, the date itself and a boolean that i have bound to the RadCheckBoxElement.

Binding the date property results in no problems what so ever, as for the boolean unfortunately i cannot say the same thing.

For the sake of trial and error, i have tried binding this property to CheckState, IsChecked and ToogleState with no results.

Thanks in advance for any help provided.

Best regards,

João Carvalho

Calendar, DateTimePicker, TimePicker and Clock

answered on 19 Feb 2016

3 answers

187 views

Adding the First Item to a Ganttview

Hi All

Me again ;)

I have tried to search, but cannot find the answer.

I have a DataSet I use for the gantview. All the properties is correct, but on the first time a user uses it, there is still no data, so it is an empty Dataset.

On this empty Gantview though, there is no Context Menu, so here is my question: How do a User add the First Task to an Empty Ganttview ?

Regards

Marius

GanttView

answered on 19 Feb 2016