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如何根据条件语句更改gridview单元格的背景色?

code-behind gridview css c#

Freakishly · 技术社区 · 14 年前

好吧,我显然没有给谷歌提供正确的查询,否则我现在就知道了。我希望这个论坛上有人能帮我。

所以我有一个datatable,我正在添加行,它基于一个datareader,这个datareader从数据库上执行的sql查询中获取信息。到目前为止,还不错。现在,其中一个列称为“analysis”,如果前面两列匹配,我需要它的背景色为绿色,否则为红色。

如果我不能触摸背景色,我想插入一个特殊的字符,任何不被解释为文本的javascript。

简单地说,我希望css从codebhind控制gridview。我看了又看都没用。我发现 this

2 回复 | 直到 7 年前

this. __curious_geek 14 年前

在 GridView\行数据绑定 事件,获取要更改背景颜色的单元格,如果条件测试为真,则设置单元格的颜色。

/// <summary>
/// Handles gridview row data bound event.
/// </summary>
/// <param name="sender">Sender Object</param>
/// <param name="e">Event Argument</param>
protected void Gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
    // We donât want to apply this to headers.
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        try
        {
            //your data-object that is rendered in this row, if at all required.
            //Object obj = e.Row.DataItem;

            //find the right color from condition
            string color = condition ? "#ff9900" : "some-other-color";

            //set the backcolor of the cell based on the condition
            e.Row.Cells[4].Attributes.Add("Style", "background-color: " + color + ";");
        }
        catch
        {
        }
    }
}

sanjay 9 年前

 protected void GVKeywordReport_RowDataBound(object sender, GridViewRowEventArgs e)
        {

            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                DataRow pr = ((DataRowView)e.Row.DataItem).Row;
                int oldPos = Convert.ToInt32(pr["oldposition"]);
                int newPos = Convert.ToInt32(pr["newposition"]);
                GVKeywordReport.HeaderRow.Cells[3].Text = txtfrmdate.Text;
                GVKeywordReport.HeaderRow.Cells[4].Text = txtEndDate.Text;

                GVKeywordReport.HeaderRow.BackColor = ColorTranslator.FromHtml("#B3B300");
                e.Row.Cells[0].BackColor = ColorTranslator.FromHtml("#B3B300");
                e.Row.Cells[5].BackColor = ColorTranslator.FromHtml("#FFFFFF");

                if (oldPos == newPos)
                {
                    e.Row.BackColor = ColorTranslator.FromHtml("#FF950E");
                    e.Row.Cells[6].Text = "No Change";
                }
                else if (oldPos > newPos)
                {
                    e.Row.BackColor = ColorTranslator.FromHtml("#FFFFCC");
                    e.Row.Cells[6].Text = "Improved";
                }
                else  

                {
                    e.Row.BackColor = ColorTranslator.FromHtml("#FF0000");
                    e.Row.Cells[6].Text = "Decreased";
                }
               // e.Row.Cells[0].BackColor = ColorTranslator.FromHtml("#7DA647");
            }
        }