Trim String using c#

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I have a string with name like this (VAN909_445_Viperacrfd_40450.jpg)

Now i want to remove the part (Viperacrfd_40450.jpg). The 445 is an id and i'll be able to retrieve from DB so that triming will be easier.. Can anyone tell me how to get the desired result of Viperacrfd_40450.jpg

Posted 3-Jul-12 22:20pm

Arjun Menon U.K

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DamithSL 4-Jul-12 5:00am

you want only "Viperacrfd_40450.jpg" or final result you want is "VAN909Viperacrfd_40450.jpg"?

DamithSL 4-Jul-12 5:02am

"string1_string2_string3" is this the format of your input? if Yes, what is the output you expect?

Arjun Menon U.K 4-Jul-12 5:06am

Damith the final result i want is Viperacrfd_40450.jpg

DamithSL 4-Jul-12 5:48am

check my answer, if you are using .net 3.0 + version then you can do this as my answer

5 solutions

Solution 1

have a look at Regular Expressions in C#[^]

Posted 3-Jul-12 22:23pm

barneyman

Solution 2

Hi,
you can use split function.
then concatinate the result according to your need.

Posted 3-Jul-12 22:38pm

prateekfgiet

Solution 4

.net 3.0 or above, using Linq

C#

string input =  dsTicketDetails.Tables[0].Rows[i]["Attachment"].ToString();
string result =string.Join("_",  input.Split('_').Skip(2));

Posted 3-Jul-12 23:26pm

DamithSL

Updated 3-Jul-12 23:27pm

v2

Solution 5

So we have the string below as:

VAN909_445_Viperacrfd_40450.jpg

Assuming that VAN909 is always the same at the beginning and if you can get the id, can you not do something like:

C#

string actualText = "VAN909_445_Viperacrfd_40450.jpg";

string id = 445; //Whatever ID you get over here
string textToRemove = "VAN909_" + id + "_"; //Assuming that VAN909_ is the beginning string always

string newText = actualText.Replace(textToRemove, "");

That should do it if the assumptions were used.

Posted 3-Jul-12 23:47pm

Nithin Sundar

Comments

Arjun Menon U.K 4-Jul-12 7:47am

Nithin the name is dynamic.. everything changes

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Manas Bhardwaj · Accepted Answer · 2012-07-03T22:40:00

Solution 3

like this:

C#

string input = "VAN909_445_Viperacrfd_40450.jpg";
int Id = 445;

int index = input.IndexOf(string.Format("_{0}_", Id), 0);
string result = input.Remove(0, index + 2 + Id.ToString().Length);

Posted 3-Jul-12 22:40pm

Manas Bhardwaj

Comments

Arjun Menon U.K 4-Jul-12 5:10am

Hey Manas i tried like this

string attachmentName;

attachmentName = dsTicketDetails.Tables[0].Rows[i]["Attachment"].ToString().Substring(dsTicketDetails.Tables[0].Rows[i]["Attachment"].ToString().IndexOf(dsTicketDetails.Tables[0].Rows[i]["attachmentID"].ToString()));

attachmentName = attachmentName.Substring(attachmentName.IndexOf("_")+1);

Arjun Menon U.K 4-Jul-12 5:19am

Please let me know if there is any problem