Questions on UI for WinForms Forum

4 answers

962 views

Hello,

I'm trying to show and hide groups and single items of a PropertyGrid depending on the answers inside the same propertyGrid.

I've seen that a good place to set the visibility of the group is in when the grid is created, in this function:

private void RadPropertyGridOnCreateItemElement(object sender, CreatePropertyGridItemElementEventArgs e)

{

if (e.Item is PropertyGridGroupItem groupItem)

{

var myItem = (MyItem)groupItem.Group.GroupItem.GridItems[0].Value;

groupItem.Visible = myItem.EnableGroup;

}

if (e.Item is PropertyGridItem item)

{

var myItem = (MyItem)item.Value;

item.Visible = myItem.EnableItem;

}

However, I'm not able to change the visibility at a second time, since this function is not called again later.

If I try to change the visibility of the VisualItem in OnItemFormatting, the items are hidden, but the spaces are not recalculated and the design is messed up.

Also, if I try to change the visibility of an item at the end of OnEdited, OnItemFormatting goes on loop.

Any hint? :)

Thanks!

PropertyGrid

answered on 20 Feb 2019

1 answer

121 views

RadGalleryElement display issue

Hello,

I use a RadGalleryElement in my ribbonbar. I found that after I expanded gallery and then re-collapsed, the collapsed gallery size will be changed automatically. Please see the first attached photo. How can I keep the size of gallery unchanged (original one or the smaller one) ?

FYI,

My gallery is autosize = true, the items are added dynamically at the form loading.

I've tried autosize=false, the gallery is completely disappeared. Weird.

Second question, how can I display selected item effect as the second attached photo ? I found few theme can support selected item effect, like windows 7 theme. But I use windows 8 theme.

How can I show selected item effect in program ? If not possible, please tell me which property I can modify in theme.

Thank you.

RibbonBar

answered on 20 Feb 2019

8 answers

246 views

ms word document text box not shown in RichTextEditor

I have a word file with the docx extension; it is used in the file from the text box of the msword .
When I open the file by RichTextEditor, the text box controls are not displayed.

RichTextEditor

answered on 20 Feb 2019

4 answers

343 views

Disable tab button

Hi ,

I want to control tab button disable or enable in different condition, is there any way I can do this ?

Dock

answered on 20 Feb 2019

0 answers

86 views

size of the chart

hi

How can this space be reduced?

ChartView

asked on 19 Feb 2019

1 answer

113 views

Finding CurrentBitmap in the Viewport

Hello, I'm trying to find the Parent container of CurrentBitmap inside of CanvasElement.

I want to ignore the current zoom and window location of the image for a custom control's mouse position relative to the image. Any help would be appreciated.

Thank you.

ImageEditor

answered on 19 Feb 2019

2 answers

309 views

How to export radgridview to pdf on a button click in c# winforms

private void button1_Click(object sender, EventArgs e)
{

ExportToPDF exporter = new ExportToPDF(this.radGridView1);
exporter.FileExtension = "pdf";
//exporter.HiddenColumnOption = Telerik.WinControls.UI.Export.HiddenOption.DoNotExport;
exporter.FitToPageWidth = true;
string fileName = "c:\\Directory-information.pdf";
exporter.RunExport(fileName);

}

Im beginner in .net, what ever experienced people teach is me what I learn. Help me with this issue , I will be very much thankful to you all.

GridView

answered on 19 Feb 2019

2 answers

69 views

prevent FilterDescriptor from instantly filterin after adding it to the grid

Hi there,

I'm using a RadGridView with a DateTime column. The property for this column is a nullable DateTime property. I read on a few forum posts that I need to add a FilterDescriptor for the nullable DateTime columns manually. So I added the descriptors the following way:

FilterDescriptor desc = new FilterDescriptor();

desc.Operator = FilterOperator.IsEqualTo;

desc.Value = null;

desc.IsFilterEditor = true;

col.FilteringMode = GridViewTimeFilteringMode.Date;

gv.Columns["WishDate"].FilterDescriptor = desc;

When the data binding is complete, it instantly filters for null value in this column. But I don't want to filter right away. When I don't add the FilterDescriptor, the default FilterOperator for this column is "None".
What I need on startup is this nullable DateTime column with "Equal To" filter and not already filtered data.

I hope you know what I mean :)

Regards,
Danilo

GridView