how to delete a specific row satisfing conditio through datadapter

Question

4.00/5 (1 vote)

See more:

How to delete a specific row satisfing conditio through datadapter?

C#

SqlCommand comm = new SqlCommand ("select * from Room",conn);
           SqlCommand comm2 = new SqlCommand ("delete * from Room where Room_N0='"+textBox1.Text+"'",conn);

           SqlCommandBuilder scb = new SqlCommandBuilder (da);
           da.SelectCommand=comm;
           da.Fill(ds,"Room");
           MessageBox.Show(ds.GetXml());

           da.DeleteCommand = comm2;
           DataTable dt = new DataTable();
           dt = ds.Tables[0];
           //DataRow dr = new DataRow();
           foreach(DataRow dr in ds.Tables[0].Select("Room_No = '"+textBox1.Text+"'"))
           {
               dr.Delete();
           }

           MessageBox.Show(ds.GetXml());
           da.Update(ds,"Room");/// the problem is in this line

my dataset is responding the command by i.e information is deleted by dataset but when i m updating the changes to datasource it raises the error i.e the changes are not reflected in database.

Posted 30-Jun-11 3:37am

niraj.1991

Updated 30-Jun-11 20:21pm

v3

Add a Solution

Comments

Vivek Krishnamurthy 30-Jun-11 13:18pm

What is the problem in that line, can you be more specific.
Are you geting any error ? you can use Improve question widget.

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)

**theanil** · Answer 1 · 2011-06-30T07:56:00

Solution 1

simplest way is

SqlCommand comm2 = new SqlCommand ("delete * from Room where Room_N0=@Room_NO",conn);
comm2.Parameters.Add("@TID", SqlDbType.Int).Value = textBox1.Text;
conn.Open();
comm2.ExecuteNonQuery();
conn.Close();

this will help you...

Posted 30-Jun-11 7:56am

theanil

Updated 30-Jun-11 9:07am

v2

Tiwari Avinash · Answer 2 · 2011-06-30T21:41:00

Solution 2

try to use da.UpdateCommand=scb.GetUpdateCommand();

this link will help try out.

http://msdn.microsoft.com/en-us/library/system.data.common.dataadapter.update.aspx[^]

Posted 30-Jun-11 21:41pm

Tiwari Avinash