如何更改datagridview的行颜色，其中单元格值是c＃中的某个值 [英] how to change row colour of datagridview where cell value is some value in c#

问题描述

我正在使用win-apps，用c＃编码。

我有一个datagridview，它从microsoft sql server数据库加载它的数据。我的需要是我想在datagridview单元格值小于35的位置设置行颜色。

我的想法如下所示。

I am working with win-apps,coding in c#.
I have a datagridview which is loading its data from microsoft sql server database. My need is I want to set row color where the datagridview cell value is less than 35..
My idea is as given below.

//this is just my Idea,Not correct code,so please add code  
 private void colorchange()
    {
        if (dataGridView4.cellvaue <= 35)
        {
            dataGridView4.row_fore_colour = red;
        }
    }  

datagridview单元格值是文本格式。所以请不要忘记转换文本为整数值，然后给我一个解决我的问题的方法（我不知道datagridview单元格值的转换）

The datagridview cell values are in text format.So please don't forget to convert the text to integer values,and then give me a solution to my problem(i don't know conversion of datagridview cell values)

推荐答案

首先你必须订阅DataGrid像这样的CellFormatting事件：

First you must subscribe to DataGrid CellFormatting event like this:

dataGrid1.CellFormatting += new DataGridViewCellFormattingEventHandler(dataGrid1_CellFormatting);

然后在事件处理程序中执行以下操作：

And then in the event handler do something like this:

void dataGrid1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (this.dataGrid1.Rows[e.RowIndex].Cells["cellToCheck"].Value != null)
            {
                if ((int)this.dataGrid1.Rows[e.RowIndex].Cells["cellToCheck"].Value <=35)
                {
                    this.dataGrid1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.Red;
                }
                
            }
        }

希望有帮助

Hope that helps

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