如何使用C#基于条件更改gridview单元格颜色

时间:2015-07-21 00:47:58

标签: c# asp.net .net gridview

我想根据条件更改grdiview单元格的颜色,条件是如果Passport即将在一个月内到期,或者它已经过期,所以我想检查这两种情况是否会过期或如果它已经过期,那么我想将颜色更改为红色。感谢

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;
        }

      }
    }

1 个答案:

答案 0 :(得分:7)

这是一段简化的代码,对我有用,你可以很容易地适应你的情况:

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:

enter image description here

注意我使用的是07/15/1996的硬编码refDate,因此我的本地数据库中的数据是有意义的。

编辑:我把它作为一个间隔,这样更有趣:

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;
        }
    }
}

enter image description here