DevExpress之GridControl

引用自：http://blog.csdn.net/mask_soft/article/details/8985454

GridView右键菜单

一、添加右键菜单

1.在VS工具箱中的“菜单和工具栏”找到ContextMenuStrip控件，双击添加。

2.点击ContextMenuStrip右上方的小三角形，打开编辑项，可以添加菜单项。至于菜单点击事件，这里就不多说了。

3.选择gridControl（注意这里不是gridView的属性），在属性中可以找到ContextMenuStrip属性，设置成刚添加的ContextMenuStrip。

这样的话，运行起来右击表格就可以看到右键菜单了。

二、是否可用设置

在不同情况下，例如选中行的个数以及内容的不同，右键菜单的菜单项是否可用需要作出判断,

这里需要用到gridView的PopupMenuShowing这个事件。也就是在菜单出现之前用户点击右键之后，来判断一下选择了几行，从而决定菜单项是否可用。

private void gridView_PopupMenuShowing(object sender, DevExpress.XtraGrid.Views.Grid.PopupMenuShowingEventArgs e)
        {
            //获取选择的行数
            int select = gridView.SelectedRowsCount;
            itemOpen.Enabled = false;
            itemDelete.Enabled = false;
            if(select == 1)
            {
                itemOpen.Enabled = true;
                itemDelete.Enabled = true;
            }
            else if(select > 1)
            {
                itemDelete.Enabled =true;
            }
       }

设置选中行的背景色、而不改变前景色。

EnableAppearanceFocusedCell = False, EnableAppearanceFocusedRow = False
private void gdvMarket_RowCellStyle(object sender, RowCellStyleEventArgs e)
        {
            if (e.RowHandle == gdvMarket.FocusedRowHandle)
            {

               e.Appearance.BackColor=Color.CadetBlue;
              ;
            }
        }
单元格颜色的设置。
//最低价颜色控制

            DevExpress.XtraGrid.StyleFormatCondition lowPrice = new DevExpress.XtraGrid.StyleFormatCondition();
            lowPrice.Column = LowPrice;
            lowPrice.Appearance.ForeColor = Color.Red;
            lowPrice.Appearance.Options.UseForeColor = true;
            lowPrice.Condition = DevExpress.XtraGrid.FormatConditionEnum.Expression;
            lowPrice.Expression = "[LowPrice] > [PrevPrice]";
                this.gdvMarket.FormatConditions.Add(lowPrice);

            //涨跌颜色控制
            DevExpress.XtraGrid.StyleFormatCondition range = new DevExpress.XtraGrid.StyleFormatCondition();
            range.Column = Range;
            range.Appearance.ForeColor = Color.Red;
            range.Appearance.Options.UseForeColor = true;
            range.Condition = DevExpress.XtraGrid.FormatConditionEnum.Greater;
            range.Value1 = 0;
                this.gdvMarket.FormatConditions.Add(range);
单元格字符格式化方式
this.gdvMarket.Columns["RangePercent"].DisplayFormat.FormatType = DevExpress.Utils.FormatType.Custom;
      this.gdvMarket.Columns["RangePercent"].DisplayFormat.FormatString = "{0}%";  

设置列背景色

this.gdvMarket.Columns["Amount"].AppearanceCell.BackColor = Color.AliceBlue;
    this.gdvMarket.Columns["Amount"].AppearanceCell.Options.UseBackColor = true;
设置列背景色
this.gdvMarket.Columns["Amount"].AppearanceCell.BackColor = Color.AliceBlue;
    this.gdvMarket.Columns["Amount"].AppearanceCell.Options.UseBackColor = true;