C# 如何使用C根据条件更改gridview单元格颜色#

我想根据条件更改grdiview单元格的颜色，条件是如果Passport将在一个月内过期，或者它已经过期，那么我想检查这两个条件，如果它即将过期或者已经过期，那么我想将颜色更改为红色。谢谢

protected void OnRowDataBound_gvPass(object sender, GridViewRowEventArgs e)
    {
      DateTime todaysDate = DateTime.Now.Date;
      if (e.Row.RowType == DataControlRowType.DataRow)
      {


        Label lblPassportExpDate = (Label)e.Row.FindControl("PassportExpDate");
        DateTime PassportExpDateDate = DateTime.Parse(lblPassportExpDate.Text);
        if (PassportExpDateDate < DateTime.Today || PassportExpDateDate < todaysDate.AddDays(30))
        {
          //e.Row.BackColor = System.Drawing.Color.Red;
          gvDriverStatus.Columns[3].ItemStyle.ForeColor = System.Drawing.Color.Red;
        }

      }
    }

protectedvoid OnRowDataBound\u gvPass（对象发送方，GridViewRowEventArgs e）
{
DateTime todaysDate=DateTime.Now.Date；
如果（e.Row.RowType==DataControlRowType.DataRow）
{
Label lblPassportExpDate=（Label）e.Row.FindControl（“PassportExpDate”）；
DateTime PassportExpDateDate=DateTime.Parse（lblPassportExpDate.Text）；
如果（PassportExpDateDate

以下是一段对我有效的简化代码，您可以很容易地适应您的情况：

protected void Page_Load(object sender, EventArgs e)
{
    refDate = new DateTime(1996, 7, 15);
}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowIndex >= 0)
    {
        if (DateTime.Parse(e.Row.Cells[3].Text) < refDate)
        {
            e.Row.Cells[3].BackColor = Color.Red;
        }
    }
}

---

检查此项，我有类似的逻辑，但仍然不适用于我

protected void Page_Load(object sender, EventArgs e)
{
    minDate = new DateTime(1996, 7, 7);
    maxDate = new DateTime(1996, 7, 15);
}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowIndex >= 0)
    {
        var curDate = DateTime.Parse(e.Row.Cells[3].Text);

        if (minDate < curDate && curDate < maxDate)
        {
            e.Row.Cells[3].BackColor = Color.Red;
            e.Row.Cells[3].ForeColor = Color.White;
        }
    }
}