如何使用 C# 根据条件更改 gridview 单元格颜色

How to change gridview cell color based on condition using C#

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已经过期,所以我想检查这两个条件是否要过期或者如果它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;
        }

      }
    }

这是一段对我有用的简化代码,您可以轻松地适应您的情况:

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;
        }
    }
}

这是我得到的结果:

请注意,我使用的是 1996 年 7 月 15 日的硬编码 refDate,因此它对我本地数据库中的数据有意义。

编辑:我把它作为一个间隔,这样更有趣一点:

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;
        }
    }
}