UnboundColumnType Enum

Contains values that specify the data type and binding mode of columns.

Namespace: DevExpress.Data

Assembly: DevExpress.Data.v19.2.dll

Declaration

C#

[ResourceFinder(typeof(ResFinder))]
public enum UnboundColumnType

VB.NET

<ResourceFinder(GetType(ResFinder))>
Public Enum UnboundColumnType

Members

Name	Description
Bound	Indicates that the column is bound to a field in the control’s underlying data source. The type of data this column contains is determined by the bound field.
Integer	Indicates that the column is unbound and it contains integer values (the Int32 type).
Decimal	Indicates that the column is unbound and it contains decimal values (the Decimal type).
DateTime	Indicates that the column is unbound and it contains date/time values (the DateTime type).
String	Indicates that the column is unbound and it contains string values (the String type).
Boolean	Indicates that the column is unbound and it contains Boolean values (the Boolean type).
Object	Indicates that the column is unbound and it contains values of any type. A TextEdit editor is assigned for the in-place editing of such a column.

Related API Members

The following properties accept/return UnboundColumnType values:

Library	Related API Members
Cross-Platform Class Library	IThreadSafeField.UnboundType
	PivotGridFieldBase.UnboundType
WinForms Controls	GridColumn.UnboundType
	RowProperties.UnboundType
WPF Controls	ColumnBase.UnboundType
ASP.NET Controls and MVC Extensions	CardViewColumn.UnboundType
	GridViewDataColumn.UnboundType
	TreeListDataColumn.UnboundType
	VerticalGridDataRow.UnboundType

Remarks

Specific data-aware controls (such as the XtraGrid) support bound and unbound columns. Bound columns obtain their data automatically from the control’s underlying data source. The data for unbound columns should be provided manually by handling the appropriate event.

Each column in these controls provides a specific property of the UnboundColumnType type and this specifies the column’s data type and binding mode.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the UnboundColumnType enum.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-color-a-modified-cells-in-the-gridview-e997/CS/WindowsApplication1/Form1.cs#L47

if(row.RowState != DataRowState.Unchanged) {
    if(e.Column.UnboundType == DevExpress.Data.UnboundColumnType.Bound && row.HasVersion(DataRowVersion.Original)) {
        if(!Equals(row[e.Column.FieldName, DataRowVersion.Current], row[e.Column.FieldName, DataRowVersion.Original]))

VB.NET

how-to-color-a-modified-cells-in-the-gridview-e997/VB/WindowsApplication1/Form1.vb#L49

If row.RowState <> DataRowState.Unchanged Then
    If e.Column.UnboundType = DevExpress.Data.UnboundColumnType.Bound AndAlso row.HasVersion(DataRowVersion.Original) Then
        If (Not Equals(row(e.Column.FieldName, DataRowVersion.Current), row(e.Column.FieldName, DataRowVersion.Original))) Then