/// <summary>
/// 显示行号
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void treeList1_CustomDrawNodeIndicator(object sender, CustomDrawNodeIndicatorEventArgs e)
{
DevExpress.XtraTreeList.TreeList tmpTree = sender as DevExpress.XtraTreeList.TreeList;
DevExpress.Utils.Drawing.IndicatorObjectInfoArgs args = e.ObjectArgs as DevExpress.Utils.Drawing.IndicatorObjectInfoArgs;
if (args != null)
{
int rowNum = tmpTree.GetVisibleIndexByNode(e.Node) + 1;
args.DisplayText = rowNum.ToString();
}
e.ImageIndex = -1;
}
public static void SetITLTreeListStyle(TreeList treeList, Function <string> GetEmptyDisplayInfo = null)
{
treeList.OptionsMenu.EnableColumnMenu = false; //禁用许列头上的菜单
treeList.OptionsMenu.EnableFooterMenu = false; //禁用允许页脚上的菜单
treeList.OptionsBehavior.AllowRecursiveNodeChecking = true; //父节点的选中状态影响其子节点的选中状态
treeList.OptionsBehavior.Editable = false; //设置不可编辑
treeList.OptionsSelection.EnableAppearanceFocusedCell = false; //焦点单元格不受外观控制
treeList.OptionsSelection.InvertSelection = false; //设置焦点的风格应用到获得焦点的单元格，还是获得焦点的那一行的所有单元格\
treeList.OptionsView.ShowColumns = true; //显示列标题
treeList.OptionsView.ShowFilterPanelMode = DevExpress.XtraTreeList.ShowFilterPanelMode.Never; //底部区域
treeList.OptionsView.ShowIndicator = false; //不显示行指示器
//treeList.OptionsView.ShowRoot = false; //不显示根节点
treeList.VertScrollVisibility = DevExpress.XtraTreeList.ScrollVisibility.Auto; //自动显示垂直滚动条
treeList.OptionsView.EnableAppearanceEvenRow = true; //奇数行使用外观
treeList.OptionsView.EnableAppearanceOddRow = true; //偶数行使用外观
treeList.OptionsView.FocusRectStyle = DevExpress.XtraTreeList.DrawFocusRectStyle.None; //焦点样式
treeList.OptionsView.HeaderFilterButtonShowMode = DevExpress.XtraEditors.Controls.FilterButtonShowMode.Button; //列标题排序按钮样式
treeList.OptionsView.ShowHorzLines = true; //显示水平线
treeList.OptionsView.ShowVertLines = true; //显示垂直线
treeList.OptionsView.ColumnHeaderAutoHeight = DevExpress.Utils.DefaultBoolean.True; //列标题自适应高度，设置后无行指示器
treeList.OptionsView.AutoWidth = true; //允许自动调整列宽
//treeList.Appearance.Empty.BackColor = ControlUtilityTool.PubBackColorNormal; //空白处背景色
treeList.Appearance.OddRow.BackColor = ControlUtilityTool.PubTableBackColorBlue; //偶数行背景色
treeList.Appearance.EvenRow.BackColor = ControlUtilityTool.PubTableBackColorWhite; //奇数行背景色
treeList.CustomDrawNodeIndicator += (sender, e) => //绘制行指示器（treeList.OptionsView.ShowIndicator = true时有效）
{
TreeList tmpTree = sender as TreeList;
DevExpress.Utils.Drawing.IndicatorObjectInfoArgs args = e.ObjectArgs as DevExpress.Utils.Drawing.IndicatorObjectInfoArgs;
if (args != null)
{
int rowNum = tmpTree.GetVisibleIndexByNode(e.Node) + 1;
args.DisplayText = rowNum.ToString();
}
};
treeList.IndicatorWidth = (treeList.Nodes.Count + 1).ToString().Length * 9 + 23; //行指示器宽度（treeList.OptionsView.ShowIndicator = true时有效）
treeList.RowHeight = 22; //行高
treeList.OptionsCustomization.AllowColumnMoving = false; //不允许拖动列
foreach (TreeListColumn treeListColumn in treeList.Columns)
{
treeListColumn.OptionsColumn.AllowFocus = false; //不允许列头有焦点
treeListColumn.OptionsColumn.AllowMove = false; //列头不允许拖动
treeListColumn.OptionsColumn.AllowSort = false; //不允许排序
treeListColumn.OptionsColumn.AllowSize = false; //不允许拖动改变列宽
treeListColumn.OptionsColumn.FixedWidth = false; //固定宽度,仅在treeList.OptionsView.AutoWidth = true时有效
}
if (GetEmptyDisplayInfo != null)
{
//无数据时，显示文本
treeList.CustomDrawEmptyArea += (sender, e) =>
{
if (treeList.VisibleNodesCount <= 0)
{
string strHint = GetEmptyDisplayInfo();
Font font = new Font(PubFontFamily, 30, FontStyle.Regular);
Graphics g = treeList.CreateGraphics();
SizeF sizeF = g.MeasureString(strHint, font);
Rectangle rectangle = new Rectangle(
(int)((e.Bounds.Width - sizeF.Width) / 2), (int)((e.Bounds.Height - sizeF.Height) / 2) + 20,
e.Bounds.Width - 5, e.Bounds.Height - 5);
e.Graphics.FillRegion(Brushes.White, e.EmptyAreaRegion);
e.Graphics.DrawString(strHint, font, Brushes.Black, rectangle);
g.Dispose();
e.Handled = true;
}
};
}
}
