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  • DevExpress GridControl功能总结

    写在前面,Dev控件已经很久了,功能也很强大,截止到现在我编写文档出来的Dev的版本已经到了14.1了,看了Demo真的很强大,效果也很好,结合自己这一个月开发,分享一下自己研究过后的经验,不让大家走更多的弯路

    • DevExpress安装顺序
    • GridControl基本样式设置
    • GridControl常用事件和描述
    • GridControl右键菜单
    • GridControl全选和反选
    • GridControl添加小计功能
    • GridControl固定表头

      1.安装从未如此简单

      Dev的安装文件已经放大百度云中方便大家下载:DevExpress 12.2.7,下载后按照图片数字顺序依次安装,这就是Dev 12.2.7,你值得拥有。

      if (bandedGridView1.GetFocusedDataRow() == null) return;
                  //运单编号
                  var columnValue= bandedGridView1.GetFocusedRowCellValue("绑定列字段名称").ToString();

       

       

       

      注意事项:使用VS2012和2010搭配DevExpress 12.2.7这个版本一起开发是最好的,工具箱暂时无法导入VS2013

      2.基本样式设置,你会吗?

      面对第一次使用GridControl,搞不懂GridControl下面为什么有一堆的GridView呢?后来想想,原来GridControl是一个大容器,下面有很多视图,那么就是操作视图,下面是我的一些常用样式设置。

      

                bandedGridView1.IndicatorWidth = 40; //自增列宽度
                bandedGridView1.OptionsView.ColumnAutoWidth = false; //自动调整列宽,使所有列的宽度和视图的宽度匹配
                bandedGridView1.OptionsCustomization.AllowSort = false;//禁止用户对数据进行排序操作
                bandedGridView1.OptionsCustomization.AllowColumnResizing = false; //禁止各列头改变列宽
                bandedGridView1.VertScrollVisibility = ScrollVisibility.Auto; //显示垂直滚动条
                bandedGridView1.HorzScrollVisibility = ScrollVisibility.Auto; //显示水平滚动条
                bandedGridView1.OptionsMenu.EnableColumnMenu = false; //禁止列头上的菜单
                bandedGridView1.OptionsMenu.EnableFooterMenu = false; //禁止页脚上的菜单
                bandedGridView1.OptionsMenu.EnableGroupPanelMenu = false; //禁止分组面板上的菜单
                bandedGridView1.OptionsNavigation.UseTabKey = false; //不使用TAB/SHIFT+TAB移动焦点
                bandedGridView1.OptionsBehavior.Editable = false;//不允许编辑
                bandedGridView1.OptionsBehavior.ReadOnly = true;//只读
    

       3.这些事件你会常用

         CustomDrawRowIndicator:DGV显示自增行号

                e.Appearance.TextOptions.HAlignment = HorzAlignment.Far;
                if (e.Info.IsRowIndicator)
                {
                    if (e.RowHandle >= 0)
                    {
                        e.Info.DisplayText = (e.RowHandle + 1).ToString(CultureInfo.InvariantCulture);
                    }
                    else if (e.RowHandle < 0 && e.RowHandle > -1000)
                    {
                        e.Info.Appearance.BackColor = Color.AntiqueWhite;
                        e.Info.DisplayText = "G" + e.RowHandle;
                    }
                }

               RowCellStyle:GridView隔行变色

     bandedGridView1.Appearance.OddRow.BackColor = Color.White; // 设置奇数行颜色 // 默认也是白色 可以省略 
                bandedGridView1.OptionsView.EnableAppearanceOddRow = true; // 使能 // 和和上面绑定 同时使用有效 
                bandedGridView1.Appearance.EvenRow.BackColor = Color.FromArgb(255, 250, 205); // 设置偶数行颜色 
                bandedGridView1.OptionsView.EnableAppearanceEvenRow = true; // 使能 // 和和上面绑定 同时使用有效
                if (e.RowHandle == bandedGridView1.FocusedRowHandle)
                {
                    e.Appearance.Font = new Font("宋体", 9, FontStyle.Bold);
                }
    View Code

         FocusedRowChanged选中行改变绑定行数据到对应控件中 

    if (bandedGridView1.GetFocusedDataRow() == null) return;//判断当前选中行是否为null
                //返回值
                var columnValue= bandedGridView1.GetFocusedRowCellValue("绑定列字段名称").ToString();
    

         4.添加右击菜单一个很常用的功能

         

        添加ContextMenuStrip控件,然后自定义按钮,可以找一些16*16的小图标点缀一下,很不错

           

    这样一个右键菜单就已经绑定成功

          5.GridControl全选和反选

         这是一个比较难的问题,这里我结合网上寻找的资料总结了一个实体类贴上源代码

     

    //-------------------------------------------------------------------------------------
    // All Rights Reserved , Copyright (C) 2014 , ZTO , Ltd .
    //-------------------------------------------------------------------------------------
    
    using System.Drawing;
    using System.Windows.Forms;
    using DevExpress.XtraEditors.Repository;
    
    namespace ZTO.WayBill.Utilities
    {
        /// <summary>
        /// Dev GridControl 创建全选复选框
        ///
        /// 修改纪录
        ///
        ///          2014-5-30   版本:1.0 YangHengLian 创建主键,注意命名空间的排序。
        /// 
        /// 版本:1.0
        ///
        /// <author>
        ///        <name>YangHengLian</name>
        ///        <date>2014-5-30</date>
        /// </author>
        /// </summary>
        public class DevControlHelper
        {
            /// <summary>
            /// 创建复选框
            /// </summary>
            /// <param name="e"></param>
            /// <param name="chk"></param>
            public static void DrawCheckBox(DevExpress.XtraGrid.Views.Grid.ColumnHeaderCustomDrawEventArgs e, bool chk)
            {
                RepositoryItemCheckEdit repositoryCheck = e.Column.ColumnEdit as RepositoryItemCheckEdit;
                if (repositoryCheck != null)
                {
                    Graphics g = e.Graphics;
                    Rectangle r = e.Bounds;
                    DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info;
                    DevExpress.XtraEditors.Drawing.CheckEditPainter painter;
                    DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs args;
                    info = repositoryCheck.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
                    painter = repositoryCheck.CreatePainter() as DevExpress.XtraEditors.Drawing.CheckEditPainter;
                    info.EditValue = chk;
                    info.Bounds = r;
                    info.CalcViewInfo(g);
                    args = new DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs(info, new DevExpress.Utils.Drawing.GraphicsCache(g), r);
                    painter.Draw(args);
                    args.Cache.Dispose();
                }
            }
            /// <summary>
            /// 全选,反选
            /// </summary>
            /// <param name="gridView"></param>
            /// <param name="fieldName"></param>
            /// <param name="currentStatus"></param>
            /// <returns></returns>
            public static bool ClickGridCheckBox(DevExpress.XtraGrid.Views.Grid.GridView gridView, string fieldName, bool currentStatus)
            {
                bool result = false;
                if (gridView != null)
                {
                    gridView.ClearSorting();//禁止排序
                    gridView.PostEditor();
                    DevExpress.XtraGrid.Views.Grid.ViewInfo.GridHitInfo info;
                    Point pt = gridView.GridControl.PointToClient(Control.MousePosition);
                    info = gridView.CalcHitInfo(pt);
                    if (info.InColumn && info.Column != null && info.Column.FieldName == fieldName)
                    {
                        for (int i = 0; i < gridView.RowCount; i++)
                        {
                            gridView.SetRowCellValue(i, fieldName, !currentStatus);
                        }
                        return true;
                    }
                }
                return result;
            }
        }
    }
    View Code

     

     

    下面是使用步骤

    窗体加载事件添加一些代码

    private bool _mCheckStatus; //GridControl全选,作为全局变量,默认false
            private void FrmInputBill_Load(object sender, EventArgs e)
            {
                bandedGridView1.OptionsBehavior.Editable = false;
                bandedGridView1.OptionsBehavior.ReadOnly = true;
                var col = new BandedGridColumn { FieldName = "Check", Visible = true, VisibleIndex = 0, ColumnEdit = new RepositoryItemCheckEdit() };
                col.OptionsColumn.AllowEdit = true; //CheckBox可以编辑改变
                gridBand1.Columns.Insert(0, col);
                bandedGridView1.Click += bandedGridView1_Click;
                bandedGridView1.CustomDrawColumnHeader += bandedGridView1_CustomDrawColumnHeader;
                bandedGridView1.DataSourceChanged += bandedGridView1_DataSourceChanged;
           //这里绑定数据源
            }
            #region GridControl支持全选事件
     
            private void bandedGridView1_Click(object sender, EventArgs e)
            {
                if (DevControlHelper.ClickGridCheckBox(this.bandedGridView1, "Check", _mCheckStatus))
                {
                    _mCheckStatus = !_mCheckStatus;
                }
            }
     
            private void bandedGridView1_CustomDrawColumnHeader(object sender, ColumnHeaderCustomDrawEventArgs e)
            {
                if (e.Column != null && e.Column.FieldName == "Check")
                {
                    e.Info.InnerElements.Clear();
                    e.Painter.DrawObject(e.Info);
                    DevControlHelper.DrawCheckBox(e, _mCheckStatus);
                    e.Handled = true;
                }
            }
     
            private void bandedGridView1_DataSourceChanged(object sender, EventArgs e)
            {
                GridColumn column = this.bandedGridView1.Columns.ColumnByFieldName("Check");
                if (column != null)
                {
                    column.Width = 40;
                    column.OptionsColumn.ShowCaption = false;
                    column.ColumnEdit = new RepositoryItemCheckEdit();
                }
            }
     
            #endregion
    全选和反选

     

     6.添加小计功能
    第一步

    第二步
    加载完数据之后绑定

    bandedGridView1.Columns["绑定字段列名"].Summary.Add(DevExpress.Data.SummaryItemType.Count, "BILL_CODE", "总计:{0}条"); //添加小计功能,在指定的列上添加一个统计对象
    删除动作修改对应的小计信息,代码如下:
    bandedGridView1.Columns["绑定字段列名"].Summary[0].DisplayFormat = string.Format("小计{0}条", bandedGridView1.RowCount);
    7.固定表头


    记录了一些GridControl的常用代码,分享给大家,如果有兴趣的可以到我的群IT(霸气测漏)里进行提问,不仅包括GridControl,其他的控件我也研究了,运用到项目中

    将来的你一定会感激现在拼命的自己
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  • 原文地址:https://www.cnblogs.com/wohexiaocai/p/3813348.html
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