How to use indexof property in C#

assumming test is integer and strText is a string. This should work

test  = strText.Indexof("\t")+1

actually this is what i have

object item = lstMfgColors.SelectedItems[I];

string o = item.ToString().Indexof("\t",0);

Is that what you need?
Maybe some sourcecode around it would be more explanatory...

Could you please explain what this code does exactly:

test = InStr(1, strText, vbTab)

try this:
- Use a string variable type string:
string segment = str.Substring(index1,len);
where segment is a variable to store the substring,
str is the original string,
index1 is the zero-based starting position of the substring that you want to extract,
len is the number of characters you wish to extract.

This should resolve it.