Questions on UI for WinForms Forum

3 answers

538 views

Hi Telerik,

i got a GridView with a ImageColumn

within the cellFormatting event I do the following:

            if (e.CellElement.ColumnInfo is GridViewImageColumn)
            {
                if (e.CellElement.Image == null)
                {
                    if (((GridViewImageColumn)e.CellElement.ColumnInfo).FieldName == "PicturePath")
                    {
                        string strPath = ((GridImageCellElement)e.CellElement).Value.ToString();
                        if (strPath != string.Empty)
                        {
                            e.CellElement.Image = new Bitmap(strPath);
                            e.CellElement.ImageLayout = ImageLayout.Stretch;
                        }
                    }

this works fine basically, but when I get to a certain number of records it gets considerably slow when scrolling (because it has to repaint the grid again....)

I also noticed, when scrolling forward and backwards it randomly places displayed images within the column (even to record who actually dont have an image yet)

Any idea how to improve the performance and how to get around the scrolling issue?

thank you

cheers

Christian

GridView

answered on 23 May 2014

2 answers

164 views

Get Selected Value Only

I want to use this control because of the search capability. I want the user to look up an item based off its code or description. This works just fine. Once the user finds the item they want, I need to add it to a grid. This functionality works. Here is the problem. I need to get the value of what's clicked or the value when they hit enter or tab. SelectedIndexChanged fires off on everything. This causes unwanted items to be added to the grid. I only want the items added if the user clicks on it or hits tab or enter. SelectedIndexChanged fires off on up and down arrows and so on. How can I get the value of what's actually clicked? Click and mouseclick do not work because it fires off for the list box click only and not the underlying grid.
Anyone have any ideas on how to only get what the user clicks on and not ever item when SelectedIndexChanged fires?

MultiColumn ComboBox

answered on 23 May 2014

3 answers

758 views

Today button on Calendar Control

G'day,

I am using a Telerik WinForms Calendar control, with the footer visible so that I can use the Today button.

Unfortunately, when I click the Today button the control only 'shows' today. FOr example, if I had a date in November 2014 selected the control would only move the visible month to todays month (April 2013).

My desired behaviour is for the calendar to move the display and ALSO select the date (triggering all the usual SelectedDateChanged events).

Do I need to handle the TodayButton click event? How do I do this? Is this possible in any way?

EDIT: It looks like it adds today's date to the selected dates, instead of replacing the selecteddate with todays date. Is this the designed behaviour?

Kind Regards,
Connect Direct Team

Calendar, DateTimePicker, TimePicker and Clock

answered on 23 May 2014

7 answers

172 views

Header footer

Does the richtextbox support header and footer. I tried importing a msword document with an image header. The richtextbox was able to import the entire document including the images on the document correctly. However the image on the header section was not imported.

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 23 May 2014

1 answer

319 views

Select Item with keyboard

Hi,

How can i select an item by pressing first character on keyboard. I can't find any property for this feature.

Thanks and regards,
Kasi

ListView

answered on 23 May 2014

7 answers

642 views

Set Font from FontDialog

Can I set font family and size from a FontDialog() for a selected area of text in a RichTextBox? If so, what properties do I need to look for and set? I'm doing this in C#.

Thanks,
Ross

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 22 May 2014

35 answers

1.3K+ views

Drag and Drop

Telerik Team,

Can you drag and drop a row with this control? I am currently using Q1 2007 version.

THanks

GridView

answered on 22 May 2014

2 answers

1.1K+ views

Need to change the value of DropDownList after SelectedIndex event

Hi,

I have some code that allows a user to trigger an action from a choice in a DropDownList. After this action has completed, I would like to reset the index/value of the DropDownList to the first Item on the list (Index = 0).

I am attempting to trigger the action on the SelectedIndexChanged event, but it will not allow me to change the index within the event. I can change this value within another event, but I am not sure which one to use... In the past, using Windows Forms, we have used the SelectionChangeCommitted event to do the reset, aftert the event was kicked off with the SelectedIndexChanged event. What events/event order do I need to accomplish the above scenario?

Thanks
Laura

DropDownList

answered on 21 May 2014

1 answer

130 views

Waterfall chart

Can the ChartView control build a Waterfall chart? if yes, what chart type should be used?

My client want to know if we can provide Waterfall chart, so I want to confirm with you guys instead of searching to save time.

Thanks.

ChartView

answered on 21 May 2014

2 answers

479 views

Datagrid filter bindingsource

Hi. Sorry my english!!!

I use a report system that uses a BindingSource as source of the repot.

How to filter the bindingsource with the same filtered data in datagrid???

I used the ComponentOne C1TrueDBgrid that does it automatically.

When I filter datagrid (C1) data with the filterbar, the filtered rows show in datagrid are same bindingsource. Understand??? kkk (My english is terrible)

How to do this with Telerik datagrid?

Winform.

GridView

answered on 21 May 2014