public override string GetDisplayText(DevExpress.Utils.FormatInfo format, object editValue)
{
if (string.IsNullOrEmpty(EntityName))
{
return(base.GetDisplayText(format, editValue));
}
if (DataSource == null && !IsNullValue(editValue) && !IsNullOrEmptyGuiId(editValue))
{
var serviceContext = new DynamicDataServiceContext();
var displayValue = serviceContext.GetPropertyValue(EntityName, editValue, DisplayMember);
if (displayValue != null)
{
return(displayValue.ToString());
}
return(GetNullEditText());
}
if (IsNullValue(editValue))
{
return(base.GetDisplayText(format, editValue));
}
object res = GetDisplayTextByKeyValueCore(editValue);
if (BaseEdit.IsNotLoadedValue(res))
{
//if (OwnerEdit != null) OwnerEdit.requireUpdateDisplayText = true;
return(string.Empty);
}
if (res == null)
{
return(string.Empty);
}
return(res.ToString());
}
public string GetDisplayTextByKeyValue(object keyValue, string displayMember)
{
var displayValue = _context.GetPropertyValue(_entityName, keyValue, displayMember);
if (displayValue != null)
{
return(displayValue.ToString());
}
return(string.Empty);
}