Question

我有一些代码可以改变GridView中特定标签的背景颜色，并且效果很好。

protected void HighLight_Hours(Label Quarter)
{
    Int32 Hours;
    Int32.TryParse(Quarter.Text, out Hours);
    switch (Hours)
    {
        case 0:
            Quarter.BackColor = Color.Red;
            break;
        case 1:
            Quarter.BackColor = Color.Yellow;
            break;
        case 2:
            Quarter.BackColor = Color.LightGreen;
            break;
    }
}

但是我没有为我的网格中的每个标签调用我的函数（有很多，一天中每15分钟一个），有一种方法可以循环遍历GridView的所有内容并设置相应的颜色？

Answer 1

尝试这样的事情：

protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // read in all controls of a row
        foreach (var control in e.Row.Controls)
        {
            // check if the control is a label
            if (control is Label)
            {
                // call your function and cast the control to a Label
                HighLight_Hours((Label) control);
            }
        }
    }
}

Answer 2

这应该这样做：

 protected void gv_OnRowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {

            foreach (DataControlFieldCell dcfc in e.Row.Controls)
            {
                DataControlFieldCell dataControlFieldCell = dcfc;

                foreach(var control in dataControlFieldCell.Controls)
                    if (control is Label)
                        HighLight_Hours((Label) control);

            }
        }
    }

Answer 3

你去......

foreach (DataGridItem CurrentItem in SomeKindOfDataGrid.Items)
     CurrentItem.BackColor = Color.Red;

安德鲁

Answer 4

只需遍历以下事件并获得控制权，就像这样：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        { 
             foreach (GridViewRow gvr in GridView1.Rows)
                {
                       foreach (Control ctrl in gvr.Controls)   
                     {

                          Label lbl = (Label )e.Row.FindControl("yourlabel");
                          lbl.ForeColor =system.drawing.color.red;


                        }
               }
        }

将背景颜色应用于GridView中的所有标签

4 个答案: