C# WPF code greater then.............

Question

1.00/5 (2 votes)

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this is my code

C#

if (view.Margin == new Thickness(view.Margin.Top > 0, -1, 0, 0))
        {
          //code in here
        }

can some one please explain why this isn't working and please tell me another that i can do this?

I get these errors

VB

Error   2   Argument 1: cannot convert from 'bool' to 'double'  C:\Users\Kyle\documents\visual studio 2010\Projects\Project Hat\Project Hat\MainGame.xaml.cs    33  46  Project Hat

Error	1	The best overloaded method match for 'System.Windows.Thickness.Thickness(double, double, double, double)' has some invalid arguments	C:\Users\Kyle\documents\visual studio 2010\Projects\Project Hat\Project Hat\MainGame.xaml.cs	33	32	Project Hat

Posted 15-Aug-11 23:26pm

C.CoderCreator

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Simon Bang Terkildsen · Answer 1 · 2011-08-15T23:32:00

Solution 1

view.Margin.Top > 0 is a boolean.
The Thickness constructor accepts double only.
Passing a boolean doesn't make sense. What exactly are you trying to achieve?

Posted 15-Aug-11 23:32pm

Simon Bang Terkildsen

v2

Comments

[no name] 16-Aug-11 5:54am

Well, im dragging this control right and I want something to happen when it reaches a point greater then then x

Simon Bang Terkildsen 16-Aug-11 6:00am

I mean what do you try to do when you write "view.Margin.Top > 0" as the first parameter to the constructor of Thickness?

[no name] 16-Aug-11 7:07am

well I think [view.Margin.Top] is the current distant from the top and as you can see the [view.Margin.Top] changes allot and it must not go past a certain point so it should look something like 0 = 1 by using the > symbol, so 0 = x or [view.Margin.Top] so yeh i hope i helped

Simon Bang Terkildsen 16-Aug-11 7:18am

Doesn't make sense to me at all. First of, the first parameter passed to the constructor is left not top (left, top, right, bottom).
Second, 0 = 1?

Sergey Alexandrovich Kryukov 17-Aug-11 1:58am

Well, you answered, got my 5. I would like to warn you: don't hope to explain things to this very inquirer -- many tried hard. Sorry, systemerror121.
--SA

[no name] 17-Aug-11 3:01am

how do i make it so i can do a double > 5?

Simon Bang Terkildsen 17-Aug-11 4:23am

double > 5 is either false or true. it doesn't make sense. forget x>y. and tell us what you want to do.

[no name] 17-Aug-11 6:37am

Well i changed the code to look something like this: private void view_MouseMove(object sender, MouseEventArgs e)
{
var pos = e.GetPosition(minimap);

double tp = new double();
double bn = new double();
double lf = new double();
double ri = new double();
tp = view.Margin.Top;
bn = view.Margin.Bottom;
lf = view.Margin.Left;
ri = view.Margin.Right;

if ((tp <= 1) || (lf <= 1) || (ri >= 184) || (bn >= 100))
{
tp -= 5;
lf -= 5;
ri -= 5;
bn -= 5;
}
else
{
if (e.LeftButton == MouseButtonState.Pressed)
{
view.Margin = new Thickness(pos.X - 20, pos.Y - 10, 0, 0);
}
}

}

Simon Bang Terkildsen 17-Aug-11 7:14am

yeah now the code makes sense to the compiler, so you should be able to compile.
But it still doesn't make sense to me, the variables tp, bn, lf and ri is never used so removing that it becodes
private void view_MouseMove(object sender, MouseEventArgs e)
{
var pos = e.GetPosition(minimap);

if(view.Margin.Top <=1 || view.Margin.Left <= 1 || view.Margin.Right >= 184 || view.Margin.Bottom >= 100)
{
return;
}

if (e.LeftButton == MouseButtonState.Pressed)
{
view.Margin = new Thickness(pos.X - 20, pos.Y - 10, 0, 0);
}

}

[no name] 17-Aug-11 7:24am

Think of this as a minimap like, league of legends or Red alert 3.

Prerak Patel · Answer 2 · 2011-08-15T23:32:00

Solution 2

Try ternary operator

C#

new Thickness(view.Margin.Top>0?1:0, -1, 0, 0)

Posted 15-Aug-11 23:32pm

Prerak Patel

Comments

[no name] 16-Aug-11 5:56am

I don't understand this code, please explain

Simon Bang Terkildsen 16-Aug-11 6:01am

have a look at this MSDN entry ?: Operator (C# Reference)

Sergey Alexandrovich Kryukov 17-Aug-11 1:59am

Reasonable guesswork, my 5. Now try to explain it :<.
--SA