how to remove end comma from the string

Question

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C#

public string display()
    {
        string st="";
        DataTable dt= (DataTable)ViewState["CurrentData"];
        for (int i = 0; i < dt.Rows.Count ; i++)
        {
            st += dt.Rows[i]["item"].ToString() + ",";
        }

        return st;
    }

This is my function who stores values in string format
for eg:- abc@gmail.com,xya@yahoo.com,dfd@gmail.com,

How can i remove the last comma from the string
for eg:- abc@gmail.com,xya@yahoo.com,dfd@gmail.com

Pls help me...

Posted 14-Aug-12 0:43am

priti2010

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7 solutions

Solution 5

C#

string finalvalue = string.Empty;
finalvalue = lblSelected.Text.Substring(0, lblSelected.Text.Length - 1);

Thanks
Ashish

Posted 14-Aug-12 2:26am

AshishChaudha

Solution 1

st = st.Remove(st.Length - 1, 1);

Posted 14-Aug-12 0:47am

Sunil Kumar Pandab

Solution 6

st=st.Substring(0,st.Length-1);

Posted 14-Aug-12 2:28am

kingsa

Solution 3

string[] strArr = null;
st = "CSharp,split,test";
char[] splitchar = {','};
strArr = st.Split(splitchar);

use this to remove comma......

Posted 14-Aug-12 1:08am

anjani123

Updated 14-Aug-12 1:09am

v2

Comments

pradiprenushe 14-Aug-12 8:26am

Correct.

Solution 4

C#

public string display()
    {
        string st="";
        DataTable dt= (DataTable)ViewState["CurrentData"];
        for (int i = 0; i < dt.Rows.Count ; i++)
        {
          if(i==dt.Rows.Count-1)
          {
             st += dt.Rows[i]["item"].ToString() ;
          }
          else
          {
             st += dt.Rows[i]["item"].ToString() + ",";
          }
       }

        return st;
    }

Posted 14-Aug-12 1:09am

kk2014

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Kuthuparakkal · Accepted Answer · 2012-08-14T01:03:00

C#

public string display()
    {
        string st="";
        DataTable dt= (DataTable)ViewState["CurrentData"];
        for (int i = 0; i < dt.Rows.Count ; i++)
        {
            st += dt.Rows[i]["item"].ToString() + ",";
        }
        st = st.LastIndexOf(",") == st.Length - 1 ? st.Substring(0, st.Length - 1) : st;
        return st;
    }

Thanks,

Kuthuparakkal

Santhosh Kumar Jayaraman · Accepted Answer · 2012-08-14T02:39:00

Solution 7

just do substring while returning.

C#

return st.Substring(0,st.Length-1);

Posted 14-Aug-12 2:39am

Santhosh Kumar Jayaraman