You can use this property to determine what type of data from the data source is expected or supplied by the field that is bound to the column. DataType values correspond to the standard data field types available through the data provider.
When this property is set to 136 (DataTypeChapter), the Hidden, Locked, Width, MinWidth, MaxWidth, and Selected properties are ignored for the column.
This property cannot be set to 72 (DataTypeGuid) or 136 (DataTypeChapter) for unbound columns.
Imports Infragistics.Shared Imports Infragistics.Win Imports Infragistics.Win.UltraWinGrid Imports System.Diagnostics Private Sub Button14_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button14.Click Dim band As UltraGridBand = Me.UltraGrid1.DisplayLayout.Bands(0) ' Check if the column has already been added. If Not band.Columns.Exists("UBColumn1") Then ' Add an unbound column with the key of "UBColumn1" band.Columns.Add("UBColumn1") band.Columns("UBColumn1").DataType = GetType(String) End If ' Loop through all the columns and print out the keys of the columns that are ' unbound. There will be only one such column since we've added only one unbound ' column above. Dim i As Integer For i = 0 To band.Columns.Count - 1 ' IsBound indicates whether a column is a bound column or is an unbound column. If Not band.Columns(i).IsBound Then Debug.WriteLine(band.Columns(i).Key & " is an unbound column") Else ' Each bound column has a PropertyDescriptor associated with it. PropertyDescriptor is ' associated with a column or field in the underlying data structure. The UltraGrid ' gets property descriptors through BindingManagerBase.GetItemProperties method. Dim pd As System.ComponentModel.PropertyDescriptor = band.Columns(i).PropertyDescriptor Debug.WriteLine(band.Columns(i).Key & " is a bound column. Property descriptor info: Name = " & pd.Name & ", Type = " & pd.PropertyType.Name) End If Next End Sub
using Infragistics.Shared; using Infragistics.Win; using Infragistics.Win.UltraWinGrid; using System.Diagnostics; private void button14_Click(object sender, System.EventArgs e) { UltraGridBand band = this.ultraGrid1.DisplayLayout.Bands[0]; // Check if the column has already been added. if ( !band.Columns.Exists( "UBColumn1" ) ) { // Add an unbound column with the key of "UBColumn1" band.Columns.Add( "UBColumn1" ); band.Columns["UBColumn1"].DataType = typeof( string ); } // Loop through all the columns and print out the keys of the columns that are // unbound. There will be only one such column since we've added only one unbound // column above. for ( int i = 0; i < band.Columns.Count; i++ ) { // IsBound indicates whether a column is a bound column or is an unbound column. if ( !band.Columns[i].IsBound ) { Debug.WriteLine( band.Columns[i].Key + " is an unbound column" ); } else { // Each bound column has a PropertyDescriptor associated with it. PropertyDescriptor is // associated with a column or field in the underlying data structure. The UltraGrid // gets property descriptors through BindingManagerBase.GetItemProperties method. System.ComponentModel.PropertyDescriptor pd = band.Columns[i].PropertyDescriptor; Debug.WriteLine( band.Columns[i].Key + " is a bound column. Property descriptor info: Name = " + pd.Name + ", Type = " + pd.PropertyType.Name ); } } }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2