更改网格视图单元格颜色的可重用方法
本文关键字:方法 颜色 网格 视图 单元格 | 更新日期: 2023-09-27 18:20:04
我需要根据数据值更改网格视图单元格的颜色。使用GridviewsRowDataBound事件中的数据行视图和if语句(见下文),我可以很容易地做到这一点,但我需要对30列执行这一操作,如果业务规则发生变化,这将非常冗长,而且很难更改。我如何将以下内容封装到一个可重用的方法中,我可以调用该方法并只传递数据列和单元格索引?
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.DataItem != null)
{
DataRowView drv = (DataRowView)e.Row.DataItem;
int A = Int32.Parse(drv["A"].ToString());
if (A <= 74)
{
e.Row.Cells[2].BackColor = System.Drawing.Color.Red;
}
}
}
public void SetColor(DataGridViewRow row, string columnName, int cellIndex)
{
var data = (GridViewRow)row.DataItem;
int number = Convert.ToInt32(data[columnName]);
if (number > 74) return;
row.Cells[cellIndex].BackColor = Color.Red;
}
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataRowType.DataRow) return;
SetColor(e, "A", 2);
}
弄清楚了-Meckley先生让我走上了正确的轨道,我的工作(如果不雅的话)解决方案是:
public void SetColor2(GridViewRow row, string columnName, int cellIndex)
{
if (row.RowType == DataControlRowType.DataRow)
{
int number = Convert.ToInt32(columnName);
if (number == 0)
{
row.Cells[cellIndex].Text = "";
return;
}
else if ((number > 0) && (number <= 74))
{
row.Cells[cellIndex].BackColor = System.Drawing.Color.Red;
row.Cells[cellIndex].ForeColor = System.Drawing.Color.Black;
return;
}
}
}
用法:
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.DataItem != null)
{
DataRowView drv = (DataRowView)e.Row.DataItem;
SetColor2(e.Row, drv["A"].ToString(), 2);
SetColor2(e.Row, drv["B"].ToString(), 3);
etc...
}
}