how to insert "{0}" as a string in c# [duplicate] - c#

This question already has answers here:
How to escape braces (curly brackets) in a format string in .NET
(11 answers)
Escape curly brace '{' in String.Format [duplicate]
(1 answer)
Closed 9 years ago.
One of the strings I want to pass into a function contains {0}, which is a placeholder escape character in c#.
What is the correct syntax to get c# to ignore this? i tried encasing it in single quotes ('), but no good

Use double curly brackets.
Ex. '{0}' becomes '{{0}}'

Use this double curly brackets
{{0}}

You need to escape the curly braces like this:
{{0}}

Related

How to add "" in to string.Format in C# [duplicate]

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I need to pass the folder path to the Python interface but spaces in the path make it complicated.
Example :
Defect.py C:\TestImage\Images works fine.
However, if there is a space in the path as below,
`Defect.py C:\**Test Image**\Images`
causes an error due to two separate parameters.
If I could pass it as :
Defect.py "C:\**Test Image**\Images" should work
So I am currently trying to use string.Format("{0}") to format this string with double quotations but does not work.
Please let me know how I could format the statement using string.Format. I need to use string.Format since there are multiple other parameters.
Try this:
string.Format("Defect.py \"C:\\{0}\\Images\"", "Test Image");
Bear in mind that the whole trick is to escape the character using the \" backslash escape character. The rest of it was just to show how to use the string.Format

How to get the text not in the square bracket using regex c#? [duplicate]

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C# Regex Split - everything inside square brackets
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C# Use Regex to Remove everything inside brackets and the brackets themselves
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Closed 5 years ago.
My string looks like below.
I want to get Completed from below string.
"Completed[TranslationTest]"
I want any text which is not in square bracket.
Making some assumptions here, what type of chracters can be inside those brackets, but basically what you want is a something followed by positive lookahead group, like this: \w*(?=\[[\w\W]*\])

escape for "{" inside C# 6 string interpolation [duplicate]

This question already has answers here:
How to escape braces (curly brackets) in a format string in .NET
(11 answers)
Closed 5 years ago.
I am hoping to use a "{" inside a string interpolation statement but I'm having trouble finding the escape character to do it.
var val = "ERROR_STATE";
var str = $"if(inErrorState){ send 1,\"{val}\" }"
Desired output:
if(inErrorState){send 1,"ERROR_STATE"}
The simple solution is to just not use string interpolation, but I think this way of doing it is easier to read.
Type { twice to escape it:
$"if(inErrorState){{send 1, \"{val}\" }}"
BTW you can do the same with double quotes.

how to escape multiple curly brackets in C#? [duplicate]

This question already has answers here:
How to escape braces (curly brackets) in a format string in .NET
(11 answers)
Closed 9 years ago.
I need to escape the first pair of curly brackets but the second pair or the inner pair should not be escaped.
string.Format("#Neptune.ShowAlert(\{content:{0}\})", ex.Message);
I have tried the above but I get the "Unrecognized escape sequence" error.
Use {{ and }} to escape the braces.

how to match parentheses with regex in c# [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Regular Expression to match outer brackets
I'm trying to match a string that contains parentheses but escaping the parentheses with a backslash gives me an error "unrecognized escape sequence". How do i match the parenthesis and retrieve whats inside?
use Regex.Escape(): http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex.escape.aspx

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