Questions on UI for WinForms Forum

6 answers

170 views

When I use the tree as MultiColumnComboBox
The table has a relation with itself
When I click on MultiColumnComboBox the popup
The following error occurs

radMultiColumnComboBox1.MultiColumnComboBoxElement.EditorControl.Relations.AddSelfReference(this.radMultiColumnComboBox1.MultiColumnComboBoxElement.EditorControl.MasterTemplate, "id", "parentid");

sqlDataAdapter1.Fill(dataSet11);

radMultiColumnComboBox1.DataSource = t1BindingSource;

radMultiColumnComboBox1.DisplayMember = "name";

radMultiColumnComboBox1.ValueMember = "id";

this.radMultiColumnComboBox1.AutoFilter = true;

this.radMultiColumnComboBox1.DisplayMember = "name";

FilterDescriptor filter = new FilterDescriptor();

filter.PropertyName = this.radMultiColumnComboBox1.DisplayMember;

filter.Operator = FilterOperator.Contains;

this.radMultiColumnComboBox1.EditorControl.MasterTemplate.FilterDescriptors.Add(filter);

sql create table
relation in id and parentid

CREATE TABLE [dbo].[T1](

[id] [int] NOT NULL,

[name] [nvarchar](50) COLLATE Arabic_CI_AS NULL,

[parentid] [int] NULL,

CONSTRAINT [PK_T1] PRIMARY KEY CLUSTERED

(

[id] ASC

)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

ALTER TABLE [dbo].[T1] WITH CHECK ADD CONSTRAINT [FK_T1_T1] FOREIGN KEY([parentid])

REFERENCES [dbo].[T1] ([id])

GO

ALTER TABLE [dbo].[T1] CHECK CONSTRAINT [FK_T1_T1]

MultiColumn ComboBox

answered on 25 Aug 2015

2 answers

280 views

Exit and Options Buttons in the RibbonBar Start Menu

Hello,

There are Exit and Options button at runtime in radribbonbar's start menu, but I don't want them to show up. How can I achieve this?

RibbonBar

answered on 25 Aug 2015

19 answers

602 views

GridTimePickerEditor for edit hour, minute, second and millisecond

Nice coding! I've following question:
In my previos in Time field I make this for editing:

ResultGridView.Columns["Time"].HeaderText = "Time";

ResultGridView.Columns["Time"].DataTypeConverter = new DateToTimeConverter();

...

private void ResultGridView_EditorRequired(object sender, EditorRequiredEventArgs e)

{

if (ResultGridView.CurrentColumn.Name == "Time")

{

e.Editor = new GridTimePickerEditor();

}

...

public class DateToTimeConverter : TypeConverter

{

public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)

{

return destinationType == typeof(DateTime);

}

public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)

{

TimeSpan span = (TimeSpan)value;

DateTime dt = new DateTime(span.Ticks);

return dt;

}

public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)

{

return sourceType == typeof(DateTime);

}

public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)

{

DateTime dt = (DateTime)value;

TimeSpan span = new TimeSpan(dt.Hour, dt.Minute, dt.Second);

return span;

}

Now I can edit only hour and minute, it possible to edit seconds and milliseconds too?

GridView

answered on 25 Aug 2015

1 answer

297 views

Bind column to specific index of List<object>

Can you bind a column to a specific index in a List, without using a hierarchical grid?

For example, with the following data structure:

public class Survey {

public string Name { get; set; }

public List<string> Answers { get; set; }

public Survey() {

Answers = new List<string>();

}

The grid is bound to a data source of List<Survey>.

I can obviously create a column with a FieldName of: "Name".

Can I create a column with a FieldName of: "Answers[0]"?

I looked at the documentation article Binding to Sub Objects, and I didn't notice any restrictions on this.

Thanks,

Eric.

GridView

answered on 24 Aug 2015

0 answers

112 views

RadRibbonbar visibile dynamically

Hi Dear

I have Radribbonbar with 3 tab and every tab have multiple group and every group

have multiple radbuttonelement.

i want to control them dynamically i add to db permissions and read them for example like this:

menu1 true

menu2 false

how can i read and apply hide or visible in radribbon bar?

RibbonBar

asked on 22 Aug 2015

2 answers

96 views

Custom Printing Hierarchical Grid

Hi,

I would like to be able to customize the printing of a hierarchical GridView.

1) The only selected rows are to be included

2) Only two columns are required in the output

What is the best way to achieve this?

GridView

answered on 19 Aug 2015

1 answer

131 views

Grid Header Click

Hi,

I window form, Grid contains the 4 columns. when I entered data in any columns and bymistake I clicked on Grid header, it does remove the data which I entered in the columns.so How can i prevent the remove data even clicked on Grid header..

Regards,

Dilip

GridView

answered on 19 Aug 2015

1 answer

141 views

Text Not Showing

I have added Text to the carousel image and set the Text to be displayed as textaboveimage - and tried a number of the other options as well - and I cannot see any of the text....

It's not long text either - often just one word.

What am I doing wrong to cause the text not to appear above the image.

I should also mention that the images are 128 x 128... so it's possible that the text is 'under the image' - how do I cause the text to be shown above the image?

I also tried to set the Text Position Offset Height to 140 to see if that would work but still - no visible text.

Can anyone help with this?

Carousel

answered on 19 Aug 2015

1 answer

165 views

Start PrintPreview with Paper in Landscape Mode

Hi all,

titel says it all.

Regards

GridView

answered on 19 Aug 2015

10 answers

403 views

DragDrop event in GridView

Hi

1. I need to be able to tell from the DragEventArgs arguments in the DragDrop event of the GridView, which row the user is "dropping" on.

I tried:

dgvPlaylistRegionMedia.GetChildAtPoint(new Point(e.X, e.Y));

but it returns null the whole time.

2. Also, it would be nice to give some sort of indication to the user where he would be "dropping", for e.g. a line between row 2 and row 3 if he's "hovering" between those 2 rows, or even a line after the last row to indicate that he would be adding it after the last row if he's "hovering" past the last row. Any ideas?

Kind regards

Ralph

GridView

answered on 19 Aug 2015