How to get the datarow value from datatable in C#

Question

1.00/5 (1 vote)

See more:

hello

i have a datatable which contain some record. the datatable column are (ID,NAME,CONTACT)
Now i wanted to find the Name and Contact by providing the ID.

suppose select NAME , CONTACT where ID = 1.

What I have tried:

here i have finded the data row of that datatable. like below

DataRow[] dr = dt.Select("ID= 1");

but how to get the NAME and CONTACT number from Datarow[]

Posted 17-Aug-17 20:25pm

Member 13366575

Updated 17-Dec-18 20:12pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

BillWoodruff · Answer 1 · 2017-08-17T20:54:00

DataRow[] dr = dt.Select("ID= 1");

foreach(DataRow row in dr)
{
    var name = row["NAME"].ToString();
    var contact = row["CONTACT"].ToString();
}

Using the 'Field extension method in System.Data, we can make simpler the casting of Column values from 'object to their native Type:

DataRow[] dr = dt.Select("ID= 1");

foreach(DataRow row in dr)
{
    string name = row.Field<string>("NAME");
    string contact = row.Field<string>("CONTACT");
}

You really need to review the "basics" of using a DataTable: [^], [^].

Atlapure Ambrish · Answer 2 · 2017-08-17T21:29:00

Solution 2

Considering ID is unique you will always get a single row, so, you do not really need to loop :), just use datarow array with index as 0 to get the NAME and CONTACT like below.

DataRow[] dr = dt.Select("ID= 1");
var name = dr[0]["NAME"].ToString();
var contact = dr[0]["CONTACT"].ToString();

Posted 17-Aug-17 21:29pm

Atlapure Ambrish

Comments

BillWoodruff 18-Aug-17 5:16am

"Considering ID is unique" what makes you certain of this ?

Atlapure Ambrish 18-Aug-17 10:18am

Ideally, the databases are designed that way.. :)

Richard Deeming 18-Aug-17 10:10am

If the ID doesn't exist in the table, you'll get an IndexOutOfRangeException. You need to check the Length of the returned array before trying to access the first element.

Atlapure Ambrish 18-Aug-17 10:19am

My brother, I would leave defensive coding part to the author :)

Member 11203491 18-Dec-18 2:13am

Thank you so much the solution 2 works like a charm.