CommandAttribute.CanExecuteMethodName Property

Gets or sets the name of the function that defines whether the command can be executed.

Namespace: DevExpress.Mvvm.DataAnnotations

Assembly: DevExpress.Mvvm.v18.2.dll

Declaration

C#

public string CanExecuteMethodName { get; set; }

VB.NET

Public Property CanExecuteMethodName As String

Property Value

Type	Description
String	A String value that is the function name.

Remarks

The function specified via the CanExecuteMethodName property should return a bool value. The command can be executed only if this function returns true.

See the example below:

C#

public class LoginViewModel {
        [Command(CanExecuteMethodName = "CanSaveAccountSettings",
            Name = "SaveCommand",
            UseCommandManager = true)]
        public void SaveAccountSettings(string fileName) {
            //... 
        }
        public bool CanSaveAccountSettings(string fileName) {
            return !string.IsNullOrEmpty(fileName);
        }
    }

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CanExecuteMethodName 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#

mvvmexpenses-sample-application-t254492/CS/MVVMExpenses/Common/ViewModel/SingleObjectViewModel.cs#L116

/// </summary>
[Command(CanExecuteMethodName = "CanSave")]
public void SaveAndClose() {

VB.NET

mvvmexpenses-sample-application-t254492/VB/MVVMExpenses/Common/ViewModel/SingleObjectViewModel.vb#L112

''' </summary>
<Command(CanExecuteMethodName:="CanSave")> _
Public Sub SaveAndClose()