如何使用winform在后台保持活动的datagridview？ [英] How to keep active datagridview in background using winform?

问题描述

C＃：我正在开发基于访问的数据库应用程序。 DataGridView中有一些text和date列。当系统时间和单元格日期相同时，日期列被编程为显示为红色。我希望DataGridView在后台自动激活，以便在时间结束时，即单元格为红色。系统托盘通知可能会出现，点击该通知应用程序时应该打开。在这需要代码不知道，因为我不是很专业。请帮忙。提前致谢。



我的尝试：



我是只能绘制我的datagridview单元格Red。在这方面无法做到。

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.

推荐答案

系统托盘通知通常是无模式的，因此它们不会干扰桌面上运行的应用程序。



要设置单元格的背景颜色，请执行以下操作：

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:

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

我会这样做：我会用 BackgroundWorker [ ^ ]刷新数据源 [ ^ ] DataGridView和 DataGridView .CellFormatting事件 [ ^ ]格式化单元格。



请参阅：

使用BackgroundWorker的DataGrid - C＃ [ ^ ]

BackgroundWorker线程和支持取消 [ ^ ]

如何：自定义Windows窗体DataGridView控件中的数据格式Microsoft Docs [ ^ ]

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[^]

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