DevExpress GridView 模糊查询

  protected override DevExpress.XtraGrid.Columns.GridColumnCollection CreateColumnCollection()
        {
            return new MyGridColumnCollection(this);
        }
        protected override DevExpress.XtraGrid.Columns.ColumnFilterInfo CreateFilterRowInfo(DevExpress.XtraGrid.Columns.GridColumn column, object _value)
        {
            try
            {
                if (SetAutoFilter)//是否允许用户模糊查询
                {
                    if ((column) is MyGridColumn && ((MyGridColumn)column).UseAdvancedFiltering == true && (string)_value != "")
                    {
                        string FilterText = (string)_value;
                        if (FilterText.Contains("%") == false && FilterText.Contains("_") == false)
                        {
                            FilterText = String.Format("%{0}%", _value);
                        }
                        return new DevExpress.XtraGrid.Columns.ColumnFilterInfo(DevExpress.XtraGrid.Columns.ColumnFilterType.AutoFilter, _value, new DevExpress.Data.Filtering.BinaryOperator(column.FieldName, FilterText, DevExpress.Data.Filtering.BinaryOperatorType.Like), null);
                    }
                    else
                    {
                        return base.CreateFilterRowInfo(column, _value);
                    }
                }
                else {
                    return base.CreateFilterRowInfo(column, _value);
                }
            }
            catch (Exception)
            {
                return base.CreateFilterRowInfo(column, _value);
            }
        }

 以上代码结合 http://www.cnblogs.com/freexiaoyu/archive/2012/09/19/2693925.html 文章放到MyGridView类中

 public class MyGridColumn : DevExpress.XtraGrid.Columns.GridColumn
    {
        public MyGridColumn()
            : base()
        {
        }
        private bool mUseAdvancedFiltering = true;
        public bool UseAdvancedFiltering
        {
            get { return this.mUseAdvancedFiltering; }
            set { this.mUseAdvancedFiltering = value; }
        }
    }
    public class MyGridColumnCollection : GridColumnCollection
    {
        public MyGridColumnCollection(DevExpress.XtraGrid.Views.Base.ColumnView View)
            : base(View)
        {
        }
        protected override DevExpress.XtraGrid.Columns.GridColumn CreateColumn()
        {
            return new MyGridColumn();
        }
    }