multiple elements conditional on if

[gordon]

Hi

I am trying to set some elements to values depending on the selection in a
test box. The first possible value that can be selected should set
fmttest1= "", fmttest2=" to " and fmttest3="". The second value that can be
selected from the test box should set the fmttest1 ="From ", fmttest2=" to
", fmttest3=" less than".

here is what i have so far but i cannot get an if statement to apply the
condition to more than one item.

private void lbSelect_SelectedIndexChanged(object sender, System.EventArgs
e)
{
if (lbSelect.SelectedIndex=0)
(fmttext1="" fmttext2=" to " fmttest3="");
else if ((lbSelect.SelectedIndex=1)
(fmttext1="From " fmttext2=" to " fmttext3=" less than ");
}
} }

I know this syntax is wrong - but what is the correct way to use many
elements in an if statement - should i use a select or case statement?

thanks

Doug

[Jon Skeet [C# MVP]]

gordon wrote:

I am trying to set some elements to values depending on the selection in a
test box. The first possible value that can be selected should set
fmttest1= "", fmttest2=" to " and fmttest3="". The second value that can be
selected from the test box should set the fmttest1 ="From ", fmttest2=" to
", fmttest3=" less than".

here is what i have so far but i cannot get an if statement to apply the
condition to more than one item.

private void lbSelect_SelectedIndexChanged(object sender, System.EventArgs
e)
{
if (lbSelect.SelectedIndex=0)
(fmttext1="" fmttext2=" to " fmttest3="");
else if ((lbSelect.SelectedIndex=1)
(fmttext1="From " fmttext2=" to " fmttext3=" less than ");
}
} }

I know this syntax is wrong - but what is the correct way to use many
elements in an if statement - should i use a select or case statement?

Well, you certainly *could* do it with a switch:

switch (lbSelect.SelectedIndex)
{
case 0:
fmttext1="";
fmttext2=" to ";
fmttext3="";
break;
case 1:
fmttext1="From ";
fmttext2=" to ";
fmttext3=" less than ";
break;
}

Personally I'd probably go with if/else until I had more than two
cases, at which point I'd go to the switch statement - or have:

static readonly string[,] TextStrings = { {"", " to ", ""}, {"From ", "
to ", " less than "} };

and do it in one hit so long as the value of SelectedIndex is in the
appropriate range. That would involve less code duplication.

Jon