UnboundColumnType Enum

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

Namespace: DevExpress.Data

Assembly: DevExpress.Mobile.Core.v18.2.dll

Declaration

C#

public enum UnboundColumnType

VB.NET

Public Enum UnboundColumnType

Members

Name	Description
Bound	Indicates that the column is bound to a field of 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 System.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.

Related API Members

The following properties accept/return UnboundColumnType values:

• GridColumn.UnboundType

Remarks

Important

This documentation topic describes legacy technology. We no longer develop new functionality for the GridControl and suggest that you use the new DataGridView control instead.

The GridControl supports bound and unbound columns. Bound columns obtain their data automatically from the grid’s underlying data source. The data for unbound columns should be provided manually by handling the GridControl.CustomUnboundColumnData event or by setting the GridColumn.UnboundExpression property.

Use the GridColumn.UnboundType property to get or set an UnboundColumnType value that 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