display user id default from database

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SQL-Server-2005

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hi.
i given identity to the uid its automatically increased by one...
when a new user came to register the id of his account show to him...
i used this code in page load event:

C#

con.Open();
SqlCommand cmd = new SqlCommand("select * from ownreg",con);
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
    TextBox10.Text = dr[0].ToString().Trim();
}
con.Close();
dr.Close();

but it showing the id as 1 only.
how to increment or display the current id number.

Posted 4-Nov-11 20:36pm

Raghupathiraja

Updated 4-Nov-11 20:41pm

koolprasad2003

v2

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koolprasad2003 · Accepted Answer · 2011-11-04T20:40:00

Solution 1

SQL has it's own functionality of AutoIncrement on inseration use that.
As you insert users information your id get's incremented automatically.
check this[^]

Posted 4-Nov-11 20:40pm

koolprasad2003

Comments

Raghupathiraja 5-Nov-11 2:49am

s i do it...
but i want show it in texbox at run time...
i coded like above... but it displaying id as 1 only...
not showing the current uid from the table....
help me friend....

koolprasad2003 5-Nov-11 2:51am

does your id get's incremented in database successfully ?

Raghupathiraja 5-Nov-11 2:54am

s there i gets increments...

koolprasad2003 · Accepted Answer · 2011-11-04T21:01:00

Solution 2

does your id get's incremented in database successfully ?
if yes then you can get autoincremented id while inseration.

here is script.

insert into sample values('w','r') SELECT @@Identity as test

The test column will return newly inserted auto incremented value.

fectch the value and assign it to textbox.

Posted 4-Nov-11 21:01pm

koolprasad2003

Comments

Raghupathiraja 5-Nov-11 3:35am

thank u ya...

purnananda behera · Accepted Answer · 2011-11-04T21:08:00

Solution 3

Update this code you get the solution

C#

con.Open();
SqlCommand cmd = new SqlCommand("select max([your id field])+1 from  ownreg",con);
SqlDataReader dr = cmd.ExecuteReader();

if (dr.Read())
{
  TextBox10.Text = dr[0].ToString().Trim();
}

con.Close();
dr.Close();

Posted 4-Nov-11 21:08pm

purnananda behera

Updated 4-Nov-11 21:11pm

v2

Comments

koolprasad2003 5-Nov-11 3:10am

"select max+1" may be produce wrong output for concurrancy

Raghupathiraja 5-Nov-11 3:35am

i got it friend... thanks ya...