使用show error的通用应用程序sqlite [英] universal app sqlite using show error
问题描述
通用应用程序sqlite使用它的显示错误System.NullReferenceException
private async void SaveUniversity()
{
if(University!= null&&!string.IsNullOrEmpty(University.Name))
{
await _dataService.SaveUniversityAsync(University);
等待this._messageBoxService.ShowAsync(已添加大学。,SQLite示例);
_navigationService.GoBack();
}
}
http://1drv.ms/1lxKaUK [ ^ ]
universal app sqlite using its show error System.NullReferenceException
private async void SaveUniversity()
{
if (University!= null && !string.IsNullOrEmpty(University.Name))
{
await _dataService.SaveUniversityAsync(University);
await this._messageBoxService.ShowAsync("Added university.", "SQLite Sample");
_navigationService.GoBack();
}
}
http://1drv.ms/1lxKaUK[^]
推荐答案
App.xaml.cs
OnLaunched
DataService.CreateDbAsync();
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