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DevExpress GridControl使用整理

时间:2020-08-08 00:27:48      阅读:260      评论:0      收藏:0      [点我收藏+]

一、常用属性

1)去除 gridView 头上的 "Drag a column header here to group by that column"

    gridView.OptionsView.ShowGroupPanel = false;

2)显示出 gridView 自带的 搜索功能 

    gridView.OptionsFind.AlwaysVisible = true;

3)让各列头禁止移动

    gridView.OptionsCustomization.AllowColumnMoving = false;

4)让各列头禁止排序

    gridView.OptionsCustomization.AllowSort = false;

5)禁止各列头改变列宽

    gridView.OptionsCustomization.AllowColumnResizing = false;

6)设置gridView不可编辑

    gridView.OptionsBehavior.Editable = false;

7)设置GridColumn(列)不可编辑

    gridColumn.OptionsColumn.AllowEdit = false;

8)不显示View的详细信息。(不显示每行前面的”+“)

    gridView.OptionsDetail.EnableMasterViewMode = false;

9)判断gridView是否选中了数据

    int index= this.gridData.gridView.GetFocusedDataSourceRowIndex() ;

    如果index小于0,证明没有选中行,否则就选中了行数据

10)选中某一行

    gridView.FocusedRowHandle =i;

    gridView.SelectRow(i);

11)根据内容自适应列宽

    gridView.BestFitColumns();

12)获取选中行的数据

    DataRow row = gridView.GetRow(i);

    DataRow row =gridView.GetFocusedRow();

13)新增一行

    gridView.AddNewRow()

14)删除选中的行

    gridView.DeleteSelectedRows();

15)设置某一列不可编辑

    GridColumn.OptionsColumn.AllowEdit = false;

16)设置gridControl列宽自使用

    gridView.OptionsView.ColumnAutoWidth = True;//为false宽度不够时出现水平滚动条

17)绑定数据

    //绑定DataSet

    gridControl.DataSource = DataSet;

    gridControl.DataMember = "表名";

    //绑定List集合

    gcGumRecord.DataSource = new BindingList<类名>(集合);

二、常用设置

1)设置成一次选择一行,并且不能被编辑

    this.gridView.FocusRectStyle = DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;

    this.gridView.OptionsBehavior.Editable = false;

    this.gridView.OptionsSelection.EnableAppearanceFocusedCell = false;

2)设置gridView为多选模式

    gridView.OptionsSelection.MultiSelect = true;

    gridView.OptionsSelection.CheckBoxSelectorColumnWidth = 30;

    gridView.OptionsSelection.MultiSelectMode = DevExpress.XtraGrid.Views.Grid.GridMultiSelectMode.CheckBoxRowSelect;

    效果:

    技术分享图片

    ps:不设置多选模式时:gridView.OptionsSelection.MultiSelect = false;

3)gridView为多选模式时设置单选(不能同时勾选多个),使用SelectionChanged事件

        private void GridView1_SelectionChanged(object sender, DevExpress.Data.SelectionChangedEventArgs e)
        {
            var a = e.Action;
            if (gridView1.SelectedRowsCount > 1)
            {
                foreach (int rowHandle in gridView1.GetSelectedRows())
                {
                    if (rowHandle != e.ControllerRow)
                    {
                        gridView1.UnselectRow(rowHandle);
                    }
                }
            }
        }

4)设置显示gridView新增一行

    gridView.OptionsView.NewItemRowPosition = DevExpress.XtraGrid.Views.Grid.NewItemRowPosition.Top;

    gridView.NewItemRowText = "点击此处增加一行";

    效果:

    技术分享图片

    ps:仅设置显示效果,实际能新增行要先给GridControl绑定数据源。

    不设置新增一行时: gridView.OptionsView.NewItemRowPosition = DevExpress.XtraGrid.Views.Grid.NewItemRowPosition.None;

21)显示行号

    //Helper.SetGridViewShowRowNumber(gridView1); 直接调用即可
    public static class Helper
    {
        /// <summary>
        /// 设置GridView显示行号
        /// </summary>
        /// <param name="gv"></param>
        public static void SetGridViewShowRowNumber(this DevExpress.XtraGrid.Views.Grid.GridView gv)
        {
            gv.OptionsView.ShowIndicator = true;
            ResetIndicatorWidth(gv);

            //设置行号
            gv.CustomDrawRowIndicator += delegate (object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)
            {
                DevExpress.Utils.Drawing.IndicatorObjectInfoArgs info = e.Info;
                if (info == null || !info.IsRowIndicator || e.RowHandle < 0)
                    return;
                info.Appearance.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
                info.DisplayText = (e.RowHandle + 1).ToString();
            };

            //行数改变
            gv.RowCountChanged += delegate (object sender, EventArgs e)
            {
                DevExpress.XtraGrid.Views.Grid.GridView selfView = sender as DevExpress.XtraGrid.Views.Grid.GridView;
                if (selfView == null)
                    return;
                ResetIndicatorWidth(gv);
            };

            //gv有子表时,展开子表重置其行号宽度
            gv.MasterRowExpanded += delegate (object sender, DevExpress.XtraGrid.Views.Grid.CustomMasterRowEventArgs e)
            {
                DevExpress.XtraGrid.Views.Grid.GridView View = sender as DevExpress.XtraGrid.Views.Grid.GridView;
                if (View == null)
                    return;
                DevExpress.XtraGrid.Views.Grid.GridView dView = View.GetDetailView(e.RowHandle, e.RelationIndex) as DevExpress.XtraGrid.Views.Grid.GridView;
                if (dView == null)
                    return;
                ResetIndicatorWidth(gv);
            };
        }

        /// <summary>
        /// 重置行号宽度
        /// </summary>
        /// <param name="gvw"></param>
        /// <param name="rowCount"></param>
        public static void ResetIndicatorWidth(this DevExpress.XtraGrid.Views.Grid.GridView gvw, int rowCount = -1)
        {
            gvw.IndicatorWidth = GetIndicatorWidth(rowCount == -1 ? gvw.RowCount : rowCount);
        }

        // 行号宽度
        public static int GetIndicatorWidth(int p)
        {
            return 7 * p.ToString().Length + 20;
        }
    }

    效果:

    技术分享图片

23)行色变化事件(RowCellStyle)

        private void GridView1_RowCellStyle(object sender, DevExpress.XtraGrid.Views.Grid.RowCellStyleEventArgs e)
        {
            int hand = e.RowHandle;
            if (hand < 0) return;
            e.Appearance.BackColor = Color.Yellow;// 改变行背景颜色
            e.Appearance.ForeColor = Color.Red;// 改变行字体颜色
            //e.Appearance.BackColor2 = Color.Blue;// 添加渐变颜色
        }

    效果:

    技术分享图片

三、初始化列

gridView1.Columns.Clear();
//或者使用:gridView1.Columns.AddVisible("字段名","标题");
this.gridView1.Columns.Add(new DevExpress.XtraGrid.Columns.GridColumn() { FieldName = "A", Caption = "列一", VisibleIndex = 0});
//使用ColumnEdit属性给列绑定控件
DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit lue_IsYes = new DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit();
this.gridView1.Columns.Add(new DevExpress.XtraGrid.Columns.GridColumn() { FieldName = "B", Caption = "列二", VisibleIndex = 1, ColumnEdit = lue_IsYes });

    效果:

    技术分享图片

DevExpress GridControl使用整理

原文:https://www.cnblogs.com/ryuug/p/13442862.html

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