Conversion of C# code to Delphi code (if condition) [closed] - c#

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I'm converting a C# project to Delphi and am struggling with this C# code:
if (!String.IsNullOrEmpty(myItem.mySubItem?.Content) && (myItem.Quantity == 0) && (String.IsNullOrEmpty(myItem.Description)))
{
continue;
}
From my understanding the Delphi code should look like this:
if assigned(myItem.mySubItem) and (length(trim(myItem.mySubItem.Content)) > 0) and (myItem.Quantity = 0) and (length(trim(myItem.Description)) = 0) then begin
Continue;
end;
But I'm not 100% sure, because logically it doesn't make sense. That's another story though. My question is: is my Delphi code a correct conversion of the quoted C# code?
In case it's wrong, what would be the correct code?


You are trimming the delphi strings before checking against a length of 0. In c#, a string containing only spaces is not 'NullOrEmpty'.

Related

Check for uppercase and lowercase letters C# [closed]

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How can I not check for just uppercase or lowercase letters.
if(textBox1.Text == "StackOverFlow")
{
//Some Code
}
If I type stackoverflow it would count it as false. But if it is typed as StackOverFlow the exact word it would be counted as true. Please help.

if(textBox1.Text.ToLowerInvariant() == "stackoverflow")
{
// Some code
}

"StackOverFlow".Equals(textBox1.Text, StringComparison.OrdinalIgnoreCase)
Use the String.Equals method.
By using StringComparison-Option StringComparison.OrdinalIgnoreCase your two strings will be compared ignoring the casing.

If Statement help mutiple and, or statements [closed]

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if (((Input.GetKeyDown(KeyCode.A)) && (Input.GetKeyDown(KeyCode.LeftShift))) || ((Input.GetKeyDown(KeyCode.RightShift)) && (Input.GetKeyDown(KeyCode.A))))
{
print("Well done! Next Key: " + "A");
}
What's Wrong with this if statement?

It looks like you have too many parentheses on the left side of the OR. Also, your parentheses are not correct on the right side. I believe you want to set it up like this.
if (Input.GetKeyDown(KeyCode.A) && (Input.GetKeyDown(KeyCode.LeftShift) || Input.GetKeyDown(KeyCode.RightShift)))
Edit: Revised because checking for A twice is redundant as pointed out by #Caius-jard.

Error converting C# code to VB.Net [closed]

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I have the following C# code
charValue = text[charIndex++];
Via the C# to VB.NET converter at converter.telerik.com, it has given me this code:
charValue = text (
System.Math.Max(
System.Threading.Interlocked.Increment(charIndex),charIndex - 1))
However, when I copy the converted code in, I am getting an error.

charValue = text[charIndex++];
in C# is shortcut for
charValue = text[charIndex];
charIndex += 1;
and in VB.Net:
charValue = text(charIndex)
charIndex += 1

What does (int) mean in c#? [closed]

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I've encountered sometimes code like this and I am kind of new to programming. I want to find out what's the meaning behind those objects or data type enclosed in parenthesis.
(int)
(datagridview)
(form)

If you see something like this it's called a cast. It's used to explicitly convert a data type to another data type.
double pi = 3.14159;
int my_int = (int)pi;
See this description on casting for more details.

How to see if two variables are not equal [closed]

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I knew that you can check if variables are equal with = or ==, but can you check if it is less than or greater that with < >, but is there a way to check if two variables are not equal, but instead diffrent

In most modern programming languages, this is accomplished with the use of the ! in front of the = sign as in !=
a != b (Used in C# and others)
Or
a <> b (Useful if your program is using additional languages)
and sometimes you use it like
NOT a == b (Again, useful if your program is calling another language that uses this form.)

Use the not equal to != operator?
if (a != b)
{
}

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