C# 为ASP.NET GridView中的所有空单元格着色

我想知道是否有办法将GridView中的所有空单元格都涂成橙色。我的GridView中的列是动态生成的。感谢您的帮助

谢谢

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    //check if the rowtype is a datarow
    if (e.Row.RowType == DataControlRowType.DataRow)
    {


        //loop all the cells in the row
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            int value = 0;

            //try converting the cell value to an int
            try
            {
                value = Convert.ToInt32(e.Row.Cells[i].Text);
            }
            catch
            {
            }

            //check the value and set the background color
            if (value == "")
            {
                e.Row.Cells[i].BackColor = Color.Green;
            }
            else 
            {
                e.Row.Cells[i].BackColor = Color.White;
            }
        }
    }
}

试试这个：

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            if (e.Row.Cells[i].Text == "&nbsp;")
                e.Row.Cells[i].BackColor = Color.Orange;
        }
    }

试试这个：

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            if (e.Row.Cells[i].Text == "&nbsp;")
                e.Row.Cells[i].BackColor = Color.Orange;
        }
    }

您可以使用RowDataBound事件来实现这一点，就像您现在所做的那样。但有一个问题。创建一个int值，但如果value==，则尝试将value与字符串进行比较。那不行

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

        //loop all columns in the row
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            //check if the string is null of empty in the source data
            //(row[i]) instead of e.Row.Cells[i].Text
            if (string.IsNullOrEmpty(row[i].ToString()))
            {
                e.Row.Cells[i].BackColor = Color.Green;
            }
            else
            {
                e.Row.Cells[i].BackColor = Color.White;
            }
        }
    }
}

您可以使用RowDataBound事件来实现这一点，就像您现在所做的那样。但有一个问题。创建一个int值，但如果value==，则尝试将value与字符串进行比较。那不行

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

        //loop all columns in the row
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            //check if the string is null of empty in the source data
            //(row[i]) instead of e.Row.Cells[i].Text
            if (string.IsNullOrEmpty(row[i].ToString()))
            {
                e.Row.Cells[i].BackColor = Color.Green;
            }
            else
            {
                e.Row.Cells[i].BackColor = Color.White;
            }
        }
    }
}

---

OnRowDataBound事件是您的起点。在那里你可以循环所有的单元格并检查它们的值。看。你能告诉我你是怎么做的吗？我有没有值的单元格。如何筛选这些列？另外，我不确定将获得多少列，因为gridview是动态的。OnRowDataBound事件是您的起点。在那里你可以循环所有的单元格并检查它们的值。看。你能告诉我你是怎么做的吗？我有没有值的单元格。你是如何过滤这些内容的？另外，我也不确定会得到多少列，因为gridview是动态的。谢谢你的帮助！谢谢你的帮助！