string IDataErrorInfo.this[string columnName]
{
get
{
return(IDataErrorInfoHelper.GetErrorText(this, columnName));
}
}
public string this[string columnName]
{
get
{
Error = IDataErrorInfoHelper.GetErrorText(this, columnName);
return(Error);
}
}
string IDataErrorInfo.this[string columnName] {
get {
//_Obtains validation attributes applied to the corresponding property and combines errors provided by them into one.
//_Since code generated by Scaffolding Wizards supports the IDataErrorInfo interface out of the box, the error will be displayed in UI.
//_The Save command will also be disabled until all errors are fixed.
//_To learn more about IDataErrorInfo support in Scaffolding Wizards, refer to the https://documentation.devexpress.com/#WPF/CustomDocument17157 topic
return(IDataErrorInfoHelper.GetErrorText(this, columnName));
}
}
public void ValidationEntityWithDisplayNameAttributesTest()
{
var entity = new ValidationEntityWithDisplayNameAttributes {
PropertyWithDisplayNameAttribute = "asdf",
PropertyWithDisplayAttribute = "asdf",
PropertyWithDisplayAttribute_Fluent = "asdf",
};
Assert.AreEqual("The field _PropertyWithDisplayNameAttribute_ must be a string with a maximum length of 2.", IDataErrorInfoHelper.GetErrorText(entity, "PropertyWithDisplayNameAttribute"));
Assert.AreEqual("The field _PropertyWithDisplayAttribute_ must be a string with a maximum length of 2.", IDataErrorInfoHelper.GetErrorText(entity, "PropertyWithDisplayAttribute"));
}
// ReSharper disable once StyleCop.SA1126 public string this[string columnName] => IDataErrorInfoHelper.GetErrorText(this, columnName);
protected virtual bool HasValidationErrors()
{
IDataErrorInfo dataErrorInfo = Entity as IDataErrorInfo;
return(dataErrorInfo != null && IDataErrorInfoHelper.HasErrors(dataErrorInfo));
}
bool CanOk(CancelEventArgs parameter)
{
return(String.IsNullOrWhiteSpace(IDataErrorInfoHelper.GetErrorText(this, "EmailAddress")));
}
