我想在点击登录按钮时根据ViewModel中的登录值在View中显示一条消息。
//ViewModel
private enum Validate { InvalidForm, Success, AuthorizationFail, ConnectionFailed }
int loginValidation;
public void Islogin()
{
if (username.Equals(string.Empty) || password.Equals(string.Empty))
{
loginValidation = 0;
}
try
{
var user = dxdbEntities.UserViews.Where(x => x.username.Equals(username) && x.password.Equals("password"));
if(user.Count() > 0)
{
loginValidation = 1;
}
else
{
loginValidation = 2;
}
}
catch (Exception)
{
loginValidation = 3;
}
}
// View
FluentApi.WithEvent(buttonLogin, "Click").EventToCommand(x => x.Islogin());
请举个例子。
答案 0 :(得分:1)
要显示消息框,请使用MessageBoxService:
public IMessageBoxService MessageBoxService => this.GetService<IMessageBoxService>();
public void Islogin()
{
if (username.Equals(string.Empty) || password.Equals(string.Empty))
{
loginValidation = 0;
}
try
{
var user = dxdbEntities.UserViews.Where(x => x.username.Equals(username) && x.password.Equals("password"));
if (user.Count() > 0)
{
loginValidation = 1;
MessageBoxService?.ShowMessage("Success");
}
else
{
loginValidation = 2;
}
}
catch (Exception)
{
loginValidation = 3;
}
}