ASPxEditBase.ReadOnly Property

Gets or sets a value indicating whether an end-user can change the editor’s contents at runtime.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.2.dll

Declaration

C#

[DefaultValue(false)]
public virtual bool ReadOnly { get; set; }

VB.NET

<DefaultValue(False)>
Public Overridable Property [ReadOnly] As Boolean

Property Value

Type	Default	Description
Boolean	false	true, if an end-user cannot change the editor’s contents; otherwise, false.

Remarks

Use the ReadOnly property to specify whether the contents of an editor can be modified by an end-user at runtime. For example, setting the ReadOnly property of an ASPxTextBox editor to true, prevents the text displayed within that editor from being changed by an end-user.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ReadOnly property.

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#

asp-net-web-forms-grid-editing-in-linq-server-mode/CS/WebSite/Default.aspx.cs#L16

    if(ASPxGridView1.IsNewRowEditing && e.Column.FieldName == "CustomerID")
        e.Editor.ReadOnly = false;
}

asp-net-web-forms-grid-editor-readonly-based-on-grid-state/CS/Solution/Default.aspx.cs#L9

    if (e.Column.FieldName == "CategoryID")
        e.Editor.ReadOnly = !grid.IsNewRowEditing;
}

VB.NET

asp-net-web-forms-grid-editing-in-linq-server-mode/VB/WebSite/Default.aspx.vb#L14

Protected Sub ASPxGridView1_CellEditorInitialize(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxGridViewEditorEventArgs)
    If ASPxGridView1.IsNewRowEditing AndAlso Equals(e.Column.FieldName, "CustomerID") Then e.Editor.ReadOnly = False
End Sub

asp-net-web-forms-grid-editor-readonly-based-on-grid-state/VB/Solution/Default.aspx.vb#L11

    Dim grid As ASPxGridView = TryCast(sender, ASPxGridView)
    If Equals(e.Column.FieldName, "CategoryID") Then e.Editor.ReadOnly = Not grid.IsNewRowEditing
End Sub