Replace Variables in String?

Question

I am Searching though the contents of a Excel Spreadsheet template at replacing all the variables represented by @Something.

I have all the variables names come up with code, i'm just looking for a way to replace the them in a string.

Example:

My name is @Name

I want it to become:

My name is John.

My Code explained:

I have an array holding a struct which holds:

TagPointer: this is my variable @name, TagValue: this would be the name John

Here i can get the index of where my variable is and i have the original String its Comp. I am just unsure how i can replace the @Something.

int testnum;
if (Comp != "null")
{
    if (Comp.IndexOf(ArrayNode[i].TagPointer) != -1)
    {
        testnum = Comp.IndexOf(ArrayNode[i].TagPointer);                          
    }
}

There's a replace function you can use to replace text. Is that what you are looking for? — default
– default, Commented Aug 6, 2012 at 8:10
Lol Voted every one up, and i got -2, haha No worry's thanks for letting me know about the .Replace function, its what i was looking for :) +1 to all — Pomster
– Pomster, Commented Aug 6, 2012 at 8:24

burning_LEGION · Accepted Answer · 2012-08-06 08:12:51Z

12

use string.Format(), string.Replace() there is less convenient

string value = "John";
string result = string.Format("My name is {0}", value);

answered Aug 6, 2012 at 8:12

burning_LEGION

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Comments

Amiram Korach · Accepted Answer · 2012-08-06 08:34:50Z

5

Unless I'm missing something, can't you use the string.replace function?

You could do something like:

foreach (var tag in ArrayNode)
{
  Comp = Comp.Replace(tag.TagPointer, tag.TagValue);
}

edited Aug 6, 2012 at 8:34

Amiram Korach

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answered Aug 6, 2012 at 8:12

Fermin

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1 Comment

Pomster Over a year ago

Not looking to change any values in my Array, But Comp.Replace(tag.TagPointer, tag.TagValue); seems to work fine :), Thank you for your answer :)

Oliver · Accepted Answer · 2012-08-06 08:30:00Z

5

Have you ever seen the FormatWith extension?

With it you can write something like this:

Status.Text = "{UserName} last logged in at {LastLoginDate}".FormatWith(user);

answered Aug 6, 2012 at 8:30

Oliver

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Comments

Habib · Accepted Answer · 2012-08-06 08:16:58Z

4

Why not using ie

string name = "Giusepe";
string _tmp = "My name is @Name";
_tmp = _tmp.Replace("@Name", name);

edited Aug 6, 2012 at 8:16

Habib

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answered Aug 6, 2012 at 8:12

VoonArt

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Comments

npinti · Accepted Answer · 2012-08-06 08:14:10Z

2

You could iterate over your array and use the .Contains() to see which tag you have present and use the .Replace() to replace the tag with the actual value.

answered Aug 6, 2012 at 8:14

npinti

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7 Comments

default Over a year ago

Wouldn't it be unneccesary to do Contains? There is no error message or exception when Replace doesn't find the tag.

Pomster Over a year ago

Thanks i have looked into the .contains() already, i just did not know about .Replace, Thank you.

npinti Over a year ago

@Default: I think that if one uses the Contains method, one would be able to call break to avoid doing unnecessary loops.

Pomster Over a year ago

Speed is important to me, as i'm searching though lots of Excel Cells.

npinti Over a year ago

@Pommy: Then I would recommend you modify the selected answer's response and make sure that if the string contains what you are after, you then call break.

|

burning_LEGION · Accepted Answer · 2012-08-06 08:17:15Z

1

Do you want this:

string a = "@Something";
a = a.Replace("@somethig", Value);

?

edited Aug 6, 2012 at 8:17

burning_LEGION

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answered Aug 6, 2012 at 8:13

Kirill Bestemyanov

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Comments

Legolas · Accepted Answer · 2020-11-27 14:52:50Z

0

Years later, we now have string interpolation to help with this.

answered Nov 27, 2020 at 14:52

Legolas

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