How to compare browser searching string with string in c#?

Hi,

I want to compare the string that entered into browser and if my string match with the keyword which are decalared into c# gives the message to the user that is "Correct".

For Ex:

Suppose i m enter the keyword "Digital Camera" in google chrome and my keyword contains the same name then displays messages "Correct"

This is my code but not working.

public void funct387()

{

Boolean mess = false;

string url = ie.LocationURL.ToString();

//string keyword = ie.Name.Contains("digital camera").ToString();

if (url.Contains("digital camera"))

{

mess = true;

}

canceliecommand();

if (mess)

{

BTS_Exam.Messagebox.Messagebox3 m1 = new BTS_Exam.Messagebox.Messagebox3();

m1.ShowDialog();

}

else

{

BTS_Exam.Messagebox.Messagebox4 m1 = new BTS_Exam.Messagebox.Messagebox4();

m1.ShowDialog();

}

Thanks in advance..