How to find List item's first element first char

Question

1.00/5 (1 vote)

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Hi guys,
I am in deep trouble. My problem is I have to match two list items(both had one element's(size of the list is 1) first character...

appears to be simple but fighting since 2 hrs..

thanks guys...

Posted 17-May-11 1:07am

Jayadheer Reddy

Updated 17-May-11 1:08am

v2

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Comments

Fabio V Silva 17-May-11 7:16am

What have you tried so far?

4 solutions

Solution 3

There is no need of ToCharArray there...

If you declared your lists like this:

C#

List<string> list1; 
List<string> list2;

Then this test will be enough:

C#

if (list1[0][0] == list2[0][0])
{
    //first chars of first elements are equal
}

Otherwise, please give more details about your lists.

Posted 17-May-11 2:12am

Olivier Levrey

Solution 1

You can find the first char ListItem1.SelectedItem.Text.ToCharArray()[0] will give you the first charecter of the Selected item.

Posted 17-May-11 1:16am

nit_singh

Comments

Jayadheer Reddy 17-May-11 7:35am

Wow it sounds great but it is not Presentation layer list. I am talking about List<t>(Collections)

Jayadheer Reddy 17-May-11 7:35am

Wow it sounds great but it is not Presentation layer list. I am talking about List(Collections)

Solution 4

Try that way

List<string> lst1 = new List<string> { "string1" };
List<string> lst2 = new List<string> { "string2" };
           
if (lst1.First()[0] == lst2.First()[0])
{

}
</string></string></string></string>

Posted 17-May-11 2:28am

nit_singh

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senguptaamlan · Accepted Answer · 2011-05-17T01:57:00

Solution 2

if(list1[0].ToString().ToCharArray()[0] == list2[0].ToString().ToCharArray()[0]))
{
   //chars are equal 
}
else
{
   //are not
}

How about this???

Posted 17-May-11 1:57am

senguptaamlan

Comments

Olivier Levrey 17-May-11 8:14am

This works but you don't need ToCharArray. The String class has an indexed property and should be enough in this case.
I voted 4.

senguptaamlan 17-May-11 8:16am

yeah very true.....just by impulse written the thing :)

fjdiewornncalwe 17-May-11 8:21am

I agree with Olivier. +4.