How to keep active datagridview in background using winform?

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C# : I am working on a access based Database application. In which DataGridView has some text and date columns. Date columns are programmed for appear red when system time and cell dates are same. I want DataGridView to automatically active in background so that when time is over i.e Cells are Red. A system tray notification may appear and on click of that notification application should be open. In this required no idea for code as i am not very expert. Please help. Thanks in advance.

What I have tried:

I was just able to paint my datagridview cell Red. Unable to do in this regard.

Posted 14-Mar-19 7:11am

Member 13870676

Updated 14-Mar-19 10:52am

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#realJSOP · Answer 1 · 2019-03-14T08:13:00

Solution 1

System tray notifications are typically modeless so that they don't interfere with apps running on the desktop.

To set a cell's background color, do something like this:

C#

DataGridViewCellStyle style = new DataGridViewCellStyle();
style.BackColor = Color.FromArgb(255,0,0);
style.ForeColor = Color.Black;
row.Cells[color.Index].Style = style;

Posted 14-Mar-19 8:13am

#realJSOP

Updated 14-Mar-19 8:14am

v2

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Member 13870676 14-Mar-19 16:20pm

Thanks for answer sir, but i was asking that "how datagridview keep active in background because i have set a condition in cellFormatting event." I put some code in cellFormatting event so that my datagridview's date cell automativally turn Red when system date will be same as cell's date. I just want system tray notification on cell becoming Red.

Maciej Los · Answer 2 · 2019-03-14T10:53:00

Solution 2

I would do that this way: i'll use BackgroundWorker[^] to refresh DataSource[^] of DataGridView and DataGridView.CellFormatting Event[^] to format cells.

See:
DataGrid using BackgroundWorker - C#[^]
BackgroundWorker Threads and Supporting Cancel[^]
How to: Customize Data Formatting in the Windows Forms DataGridView Control | Microsoft Docs[^]

Posted 14-Mar-19 10:53am

Maciej Los

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Member 13870676 15-Mar-19 2:25am

Unable to fetch the idea. Can u provide some code.