Convert unicode to string

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I have a unicode that comes from database result. I want to convert that to normal to int but it fails as it is unicode format.

What I have tried:

string id = "\x1"; //\x1 is the value came from db

int processId = Int32.Parse(id);

This crashes in above line and gives this error"Additional information: Input string was not in a correct format"

So i would like to know how do we convert this in to normal string so that i can parse it to int value in C#

Posted 2-May-21 20:26pm

Rocky_Bas

Updated 2-May-21 20:45pm

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OriginalGriff · Answer 1 · 2021-05-02T20:45:00

Solution 1

"\x1" is not a .NET format for hex values: that would be "0x1".
You can do it, if you replace the backslash. Do note that backslash is an escape character in C# strings, so you need to use the "@" prefix to create a literal string containing it:

C#

string prefixedHex = @"\x1";
int intValue = Convert.ToInt32(prefixedHex.Replace(@"\x", "0x"), 16);

Posted 2-May-21 20:45pm

OriginalGriff

Comments

Rocky_Bas 3-May-21 2:55am

What is 16 in the code what kind of index is that

OriginalGriff 3-May-21 3:07am

What do you think it means?
Hint 1: What does the "x" in your input string indicate?
Hint 2: You can use the official documentation to find out what parameters are and what they do. In this case, google "Convert.ToInt32" and look for a version that takes an integer as the second parameter to the first link it returns ...