Check if there is an existing value in a column of Access database using vb.net

Question

5.00/5 (1 vote)

See more:

hi guys, as for my recent question, i think this would be a more specific one:
how can i check using vb.net(only, as i am a beginner and do not understand other programming languages) if there is an existent value in a column of an access database?

Ive tried searching but the answers are only available using other languages and, as ive said, i am a beginner. I mean i can get the logic but i dont have enough knowledge to translate them into vb.net.

guys, help me please!!!

Posted 1-Mar-12 4:29am

kimsnap

Add a Solution

2 solutions

Solution 2

VB

Dim dataImSearchingFor as String = "What I want to Find"
Dim expressionString as String = "ColumnName LIKE '" & dataImSearchingFor & "'"

Dim DR() as DataRow = dataForm.DataSet.Database.Select(expressionString)

if DR.Length > 0
 ''' Items Found!!
End if

Posted 2-Mar-12 6:31am

RavonX

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)

thatraja · Accepted Answer · 2012-03-01T04:46:00

Write a select query like below

SQL

SELECT * FROM [TableName] WHERE [ColumnName]='ColumnValue'

Use ExecuteReader or ExecuteScalar of OLEDBCommand object to check the data exists or not
Here check this thread Checking Record Already exist or not[^]

For Code conversion(C# to VB.NET or etc.,), check this blog post.
.NET Code Conversion - Convert your code[^]