| Author: Ashok Kandasamy 02 Sep 2008 | Member Level: Diamond | Rating:  Points: 2 |
Hi,
you can refer this URL
http://www.codeproject.com/KB/cs/foreach.aspx
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| Author: ramya 02 Sep 2008 | Member Level: Gold | Rating: Points: 6 |
if u want to check condition within the collection then go for foreach loop
eg:foreach(controls i in this.controls)
{
if(i is textbox)
i.color=color.red;
}
If u r going to check the value within the loop then go for this
eg:
int x=0;
for(int i=0;i<10;i++)
{
x=x+i;
}
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| Author: G.Hemadribabu 02 Sep 2008 | Member Level: Gold | Rating: Points: 2 |
As per my knowledge is concerned Using For loop is gives good performance. You to can try it and check the perfomance of the loop , then u can judge which is better.
Hope i had answered
thank you
hemadribabu
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| Author: Gaurav Agrawal 02 Sep 2008 | Member Level: Diamond | Rating: Points: -20 |
There are situations in which "for" is definitely worse, as well. For
example, if you have a property that builds and returns an aggregate
structure such as an array:
public MyThing[] MyThings
{
get { return
(MyThing[])this._internalMyThings.ToArray(typeof(MyThing)); }
}
(Yes, I know that this is bad practice, and that FxCop specifically
warns against it, but say you had a property like this....)
Then this
for (int x = 0; x < myObj.MyThings.Length; x++)
{
MyThing thing = myObj.MyThings[i];
}
gives absolutlely horrible performance, while this:
foreach (MyThing thing in myObj.MyThings)
{
}
gives good performance.
Again, it all depends on what you're doing, and in the end it's
usually bad designs that kill performance, not using one style of loop
versus another.
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