将两个dataGridView单元格与日期值进行比较？

问题描述：

在我的c #windows窗体中，我有一个dataGridView，用于加载表中的数据，

dataGridView有8列，其中两列有日期值borrow_date和return_date 。

如果任何return_date单元格的日期大于borrow_date单元格的日期，则要比较两列中的列，使该单元格的背景为红色或使它成为前红色。

in my c# windows form i have a dataGridView that loads the data from a table,

The dataGridView has 8 columns two of them have date value borrow_date and return_date.

I want to compare the of that two columns if the date of any return_date cell is greater that the date of borrow_date cell, make the background of that cell red or make it's fore color red.

答

你需要的只是你的DataGridView控件的CellFormatting事件。

All you need is CellFormatting event of your DataGridView control.

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
    if (this.dataGridView1.Columns[e.ColumnIndex].DataPropertyName == "return_date")
    {
        var returnDate = Convert.ToDateTime(dataGridView1.Rows[e.RowIndex].Cells["return_date"].Value);
        var borrowDate = Convert.ToDateTime(dataGridView1.Rows[e.RowIndex].Cells["borrow_date"].Value);
        if (returnDate > borrowDate)
        {
            e.CellStyle.BackColor = Color.Red;
            // e.CellStyle.ForeColor = Color.Red;
        }
    }
}

欲了解更多信息，请看这里：

http://msdn.microsoft.com/library/system。 windows.forms.datagridview.cellformatting％28v = vs.110％29.aspx [ ^ ]

希望它可以帮到你：）

For more information take a look here:
http://msdn.microsoft.com/library/system.windows.forms.datagridview.cellformatting%28v=vs.110%29.aspx[^]

Hope it helps you :)

你必须在rowdatabound事件上这样做

You have to do it on rowdatabound event

if(e.row.cells[return_date ColumnNo].text > e.row.cells[borrow_date ColumnNo].text)
{
// set background colour
}

将两个dataGridView单元格与日期值进行比较？

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