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C# Convert REG_MULTI_SZ value in text file to String
The Next CEO of Stack OverflowWhat is the difference between String and string in C#?Convert a string to an enum in C#Cast int to enum in C#How do you give a C# Auto-Property a default value?How do I enumerate an enum in C#?Case insensitive 'Contains(string)'Best practice to save application settings in a Windows Forms ApplicationHow do I get a consistent byte representation of strings in C# without manually specifying an encoding?Get int value from enum in C#Best way to read a large file into a byte array in C#?
I am not a trained programmer but I do write some code (so be gentle). I am working on code to read a registry file and store the values in an SQL database. We have different registry files we push depending on the computer build. And while I could keep a folder of registry files, having a database makes it easier to compare differences and keep track of changes to the registry settings.
That said, I can easily read string and dword values but I'm having trouble with the REG_MULTI_SZ values. For example, how do I convert this in the registry file?
"SampleMS"=hex(7):54,00,45,00,53,00,54,00,00,00,44,00,41,00,54,00,41,00,00,00,
00,00
(This is 2 lines of text in the registry file so I know i have to account or that.)
To the actual value shown in regedit of:
TEST
DATA
I've read several examples of hex to byte array and byte array to string, but all that seems to do is give me the hex values in a string format like "5400450053..."
If this has already been answered somewhere and I missed it, my apologies. Any examples or code snippets are appreciated. Thank you.
c# registry
asked Mar 8 at 15:06
Tim FalkTim Falk
12
|
show 1 more comment
I am not a trained programmer but I do write some code (so be gentle). I am working on code to read a registry file and store the values in an SQL database. We have different registry files we push depending on the computer build. And while I could keep a folder of registry files, having a database makes it easier to compare differences and keep track of changes to the registry settings.
That said, I can easily read string and dword values but I'm having trouble with the REG_MULTI_SZ values. For example, how do I convert this in the registry file?
"SampleMS"=hex(7):54,00,45,00,53,00,54,00,00,00,44,00,41,00,54,00,41,00,00,00,
00,00
(This is 2 lines of text in the registry file so I know i have to account or that.)
To the actual value shown in regedit of:
TEST
DATA
I've read several examples of hex to byte array and byte array to string, but all that seems to do is give me the hex values in a string format like "5400450053..."
If this has already been answered somewhere and I missed it, my apologies. Any examples or code snippets are appreciated. Thank you.
c# registry
asked Mar 8 at 15:06
Tim FalkTim Falk
12
Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28
|
show 1 more comment
I am not a trained programmer but I do write some code (so be gentle). I am working on code to read a registry file and store the values in an SQL database. We have different registry files we push depending on the computer build. And while I could keep a folder of registry files, having a database makes it easier to compare differences and keep track of changes to the registry settings.
That said, I can easily read string and dword values but I'm having trouble with the REG_MULTI_SZ values. For example, how do I convert this in the registry file?
"SampleMS"=hex(7):54,00,45,00,53,00,54,00,00,00,44,00,41,00,54,00,41,00,00,00,
00,00
(This is 2 lines of text in the registry file so I know i have to account or that.)
To the actual value shown in regedit of:
TEST
DATA
I've read several examples of hex to byte array and byte array to string, but all that seems to do is give me the hex values in a string format like "5400450053..."
If this has already been answered somewhere and I missed it, my apologies. Any examples or code snippets are appreciated. Thank you.
c# registry
asked Mar 8 at 15:06
Tim FalkTim Falk
12
I am not a trained programmer but I do write some code (so be gentle). I am working on code to read a registry file and store the values in an SQL database. We have different registry files we push depending on the computer build. And while I could keep a folder of registry files, having a database makes it easier to compare differences and keep track of changes to the registry settings.
That said, I can easily read string and dword values but I'm having trouble with the REG_MULTI_SZ values. For example, how do I convert this in the registry file?
"SampleMS"=hex(7):54,00,45,00,53,00,54,00,00,00,44,00,41,00,54,00,41,00,00,00,
00,00
(This is 2 lines of text in the registry file so I know i have to account or that.)
To the actual value shown in regedit of:
TEST
DATA
I've read several examples of hex to byte array and byte array to string, but all that seems to do is give me the hex values in a string format like "5400450053..."
If this has already been answered somewhere and I missed it, my apologies. Any examples or code snippets are appreciated. Thank you.
c# registry
c# registry
asked Mar 8 at 15:06
Tim FalkTim Falk
12
asked Mar 8 at 15:06
Tim FalkTim Falk
12
edited Mar 8 at 15:23
Tim Falk
asked Mar 8 at 15:06
Tim FalkTim Falk
12
asked Mar 8 at 15:06
Tim FalkTim Falk
12
asked Mar 8 at 15:06
Tim FalkTim Falk
12
12
Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28
|
show 1 more comment
Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28
Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28
|
show 1 more comment
1 Answer
1
active
oldest
votes
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
So, steps to take - take each pair of hex characters and turn those into a byte (plenty of examples for doing this around). Then take this array of bytes and using System.Text.Encoding.Unicode to turn those bytes into a string. Most systems these days are fine with strings containing null characters, and here they mark the delimiters, so if you want to split it into the individual strings, split on the nulls after the string conversion.
However, if you just want to store these strings and whatever DB you're working with is fine with null characters in strings, pass them through unchanged. Note: If you've not been using parameterized queries up until this point in accessing the database, now's the time to learn. Because it's often tricky to construct a string literal which contains a null character without having to do lots of manual re-processing and/or escaping. And it's generally a good habit.
Your string here should contain the characters T, E, S, T, null, D, A, T, A, null, null
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
add a comment |
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Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
So, steps to take - take each pair of hex characters and turn those into a byte (plenty of examples for doing this around). Then take this array of bytes and using System.Text.Encoding.Unicode to turn those bytes into a string. Most systems these days are fine with strings containing null characters, and here they mark the delimiters, so if you want to split it into the individual strings, split on the nulls after the string conversion.
However, if you just want to store these strings and whatever DB you're working with is fine with null characters in strings, pass them through unchanged. Note: If you've not been using parameterized queries up until this point in accessing the database, now's the time to learn. Because it's often tricky to construct a string literal which contains a null character without having to do lots of manual re-processing and/or escaping. And it's generally a good habit.
Your string here should contain the characters T, E, S, T, null, D, A, T, A, null, null
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
add a comment |
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
So, steps to take - take each pair of hex characters and turn those into a byte (plenty of examples for doing this around). Then take this array of bytes and using System.Text.Encoding.Unicode to turn those bytes into a string. Most systems these days are fine with strings containing null characters, and here they mark the delimiters, so if you want to split it into the individual strings, split on the nulls after the string conversion.
However, if you just want to store these strings and whatever DB you're working with is fine with null characters in strings, pass them through unchanged. Note: If you've not been using parameterized queries up until this point in accessing the database, now's the time to learn. Because it's often tricky to construct a string literal which contains a null character without having to do lots of manual re-processing and/or escaping. And it's generally a good habit.
Your string here should contain the characters T, E, S, T, null, D, A, T, A, null, null
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
add a comment |
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
So, steps to take - take each pair of hex characters and turn those into a byte (plenty of examples for doing this around). Then take this array of bytes and using System.Text.Encoding.Unicode to turn those bytes into a string. Most systems these days are fine with strings containing null characters, and here they mark the delimiters, so if you want to split it into the individual strings, split on the nulls after the string conversion.
However, if you just want to store these strings and whatever DB you're working with is fine with null characters in strings, pass them through unchanged. Note: If you've not been using parameterized queries up until this point in accessing the database, now's the time to learn. Because it's often tricky to construct a string literal which contains a null character without having to do lots of manual re-processing and/or escaping. And it's generally a good habit.
Your string here should contain the characters T, E, S, T, null, D, A, T, A, null, null
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
So, steps to take - take each pair of hex characters and turn those into a byte (plenty of examples for doing this around). Then take this array of bytes and using System.Text.Encoding.Unicode to turn those bytes into a string. Most systems these days are fine with strings containing null characters, and here they mark the delimiters, so if you want to split it into the individual strings, split on the nulls after the string conversion.
However, if you just want to store these strings and whatever DB you're working with is fine with null characters in strings, pass them through unchanged. Note: If you've not been using parameterized queries up until this point in accessing the database, now's the time to learn. Because it's often tricky to construct a string literal which contains a null character without having to do lots of manual re-processing and/or escaping. And it's generally a good habit.
Your string here should contain the characters T, E, S, T, null, D, A, T, A, null, null
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
edited Mar 8 at 15:43
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
answered Mar 8 at 15:37
Damien_The_UnbelieverDamien_The_Unbeliever
198k17256346
198k17256346
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
add a comment |
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
Thank you. This is exactly the direction I needed. Appreciate the push.
– Tim Falk
Mar 8 at 16:58
add a comment |
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Don't you mean "REG_MULTI_SZ"?
– rory.ap
Mar 8 at 15:09
Also the data you have looks like binary (REG_BINARY), not strings.
– rory.ap
Mar 8 at 15:10
Sorry, yes. REG_MULTI_SZ. It's not a REG_BINARY although it appears to be binary data. It's the value that goes into the text file when you export the key. So my REG_MULTI_SZ is named SampleMS and the data in that value is TEST DATA on 2 separate lines.
– Tim Falk
Mar 8 at 15:22
Well, those bytes appear to be UTF16 representations of characters. A MULTI_SZ contains multiple null-terminated strings terminated by an empty string (or, if you like by two null terminating characters, but technically the first of those "belongs" to the previous string). You've shown us two strings of 4 characters each (plus null characters and the end)
– Damien_The_Unbeliever
Mar 8 at 15:23
OK. So my guess would be I need to convert 54,00 to 2 decimal equivalents and then get the ASCII character of the decimal value? And I'd throw away the 00 unless there are 2 in a row and that indicates a new line? This doesn't have to perform quickly, just work.
– Tim Falk
Mar 8 at 15:28