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Syncfusion Feedback

FilterBar + DataBoundGrid

Thread ID:





8678 Nov 15,2003 05:22 PM UTC Nov 15,2003 07:42 PM UTC WinForms 1
Tags: GridControl
Jim Frapper
Asked On November 15, 2003 05:22 PM UTC

It seems, when setting the databound grid property to a dataview the filterbar is lost. For example.... DataView dv = new DataView(ds.Tables["AppointmentByStatusAndGeoID"]); dv.RowFilter = "AppointmentDate > #" + System.DateTime.Today.Date + "# AND " + "AppointmentDate < #" + System.DateTime.Today.Date.AddDays(1) + "#"; this.grdAppointments2.DataSource = dv; //create the filter bar and display it GridFilterBar theFilterBar = new GridFilterBar(); //catch the creating column header event so we can turn off unwanted filter headers //needs to be hooked before WireGrid call to catch things... theFilterBar.CreatingColumnHeader += new GridFilterBarCreatingColumnHeaderEventHandler(GridFilterBarCreatingColumnHeader); //create a style for the filter cells that uses TextBox GridStyleInfo style = new GridStyleInfo(); style.ModifyStyle(this.grdAppointments2.BaseStylesMap["Header"].StyleInfo, StyleModifyType.Copy); style.CellType = "ComboBox"; style.ExclusiveChoiceList = true; style.BaseStyle = "Standard"; style.Font.Bold = false; style.BackColor = this.grdAppointments2.TableStyle.BackColor; style.Borders.Bottom = new GridBorder(GridBorderStyle.Dashed); style.DropDownStyle = GridDropDownStyle.AutoComplete; theFilterBar.WireGrid(this.grdAppointments2, style); The filter bar is not there. If I set the datasource to a datatable then the filterbar shows up. Cheers, JF

Administrator [Syncfusion]
Replied On November 15, 2003 07:42 PM UTC

This is a known limitation. Currently, you can only use either a dataset/datatable or a datatable by itself as the grid's datasource/datamember if you want to use filterbars. You can derive the GridFilterBar class to extend it to support using a DataView as the datasource for the grid. We will add support for using a DataView as the datasource in a future release. Here is some code:
    Public Class SyncGridFilterBar
        Inherits GridFilterBar
        Private _grid As GridDataBoundGrid
        Protected Overrides Function GetDataTable() As DataTable
            If _grid.DataSource Is Nothing Then
                Return Nothing
            End If
            If _grid.DataSource.GetType Is GetType(DataTable) Then
                Return CType(_grid.DataSource, DataTable)
            ElseIf _grid.DataSource.GetType Is GetType(DataView) Then
                Return CType(_grid.DataSource, DataView).Table
            End If
        End Function

        Public Overloads Overrides Sub WireGrid(ByVal grid As GridDataBoundGrid, ByVal style As GridStyleInfo)
            _grid = grid
            MyBase.WireGrid(grid, style)
        End Sub
    End Class


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