Question

我有这段代码可以在Gridview的某些单元格中设置背景颜色，但是我无法在第一行上使用它。

protected void GrdTask_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        foreach(GridViewRow row in GrdTask.Rows)
        {
            if (Convert.ToInt32(e.Row.Cells[1].Text) == 0)
            {                   
                e.Row.Cells[1].Attributes["Style"] = "background-color: #f20713";
            }               
            if (Convert.ToInt32(e.Row.Cells[1].Text) <= -3)
            {
                e.Row.Cells[1].Attributes["Style"] = "background-color: #f4d942";
            }
            if (Convert.ToInt32(e.Row.Cells[1].Text) <= -5)
            {
                e.Row.Cells[1].Attributes["Style"] = "background-color: #28b779";
            }
        }          
    }

对于其余所有行，它工作正常。我在做什么错了？

Answer 1

您正在循环RowDataBound事件中的行。您不需要这样做，并且会给出错误的结果。每行已调用RowDataBound事件。最好使用DataRowView来获取正确的值并根据该颜色为单元格上色。

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        //cast the row back to a datarowview
        DataRowView row = e.Row.DataItem as DataRowView;

        int cellValue = Convert.ToInt32(row["ColumnName"]);

        if (cellValue == 0)
        {
            e.Row.Cells[1].Attributes["style"] = "background-color: #f20713";
        }
        else if (cellValue <= -3)
        {
            e.Row.Cells[1].Attributes["style"] = "background-color: #f4d942";
        }
        else if (cellValue <= -5)
        {
            e.Row.Cells[1].Attributes["style"] = "background-color: #28b779";
        }
    }
}

Gridview.RowdataBound在第一行上不起作用

1 个答案: