Replace substring in stringbuilder, don't know location of substring

Question

Example: If the display name contains "Lambda (?)" then replace with "Lambda (&#955").

I have four various substrings that I'm trying to replace

Here's the part of my stringbuilder code:

sb.Append("<div><a href=\"" + item.URLAliasName + "\" >" + (string.IsNullOrEmpty(item.DisplayName) ? "&nbsp;" : item.DisplayName) + "</a>"...

How do I replace "Lambda (?)" if contained inside item.DisplayName? It may be found anywhere in the display name.

Are you trying to replace the string: "Lambda (?)" with "Lambda(λ)"? — maccettura, Mar 06 '17 at 20:45
Do be aware that building HTML like this opens you up to injection attacks (e.g. if `item.DisplayName` is ``. — StriplingWarrior, Mar 06 '17 at 20:52
Or do you actually have the character `λ ` in your string and you need it to be HTML encoded to `λ` or `λ`? — maccettura, Mar 06 '17 at 20:55
@code4life you had the correct answer, very simple change. Thanks all! — Andy Jr., Mar 06 '17 at 20:58

score 1 · Accepted Answer · answered Mar 06 '17 at 20:45

1

Perhaps something like this would work?

item.DisplayName.Replace("Lambda (?)", "Lambda (&#955)");

answered Mar 06 '17 at 20:45

Deetz

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score 0 · Answer 2 · answered Mar 06 '17 at 20:44

0

You can use String.Replace it takes in two strings as parameters, the value to replace and what to replace it with. It returns the resulting string.

For example: String replacedString = String.Replace("Lambda(?)", "Lambda(&#955");

answered Mar 06 '17 at 20:44

WereGoingOcean

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Replace substring in stringbuilder, don't know location of substring

2 Answers2