how to update the data from textbox to database sql

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now i trying web based appliaction please let me know, how to update the data from textbox to database sql, and how to delete the data from database and also check it its available or not?.

Please advice.....
[DELETED]@gmail.com
selvakumar v

[edit]Email address removed, tags set - OriginalGriff[/edit]

Posted 5-May-12 6:09am

selvakumarc v

Updated 5-May-12 6:11am

OriginalGriff

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OriginalGriff 5-May-12 12:12pm

Never post your email address in any forum, unless you really like spam! If anyone replies to you, you will receive an email to let you know

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Mohamed Mitwalli · Answer 1 · 2012-05-05T19:21:00

Hi ,
Check this

C#

protected void Button1_Click(object sender, EventArgs e)
{
    using (
       SqlConnection con =
           new SqlConnection(ConfigurationManager.ConnectionStrings["testConnectionString"].ConnectionString))
    {
        con.Open();
        using (SqlCommand cmd = new SqlCommand("UPDATE dbo.cate  SET cate = @cate , chk = @chk  where id  = @id", con))
        {
            cmd.Parameters.AddWithValue("@cate", txt1.Text);

            cmd.Parameters.AddWithValue("@chk", chk.Checked);

            cmd.Parameters.AddWithValue("@id", lbl1.Text);
            cmd.ExecuteNonQuery();
        }
    }
}

Best Regards
M.Mitwalli

Darshan.Pa · Answer 2 · 2012-05-05T06:25:00

use update query

SQL

update tablename set columnname='value of textbox' where condition

--to check use if Exist keywrod in stored procedure

if Exists(Select * from tablename where condition)
Begin
  -- update query/insert query what ever you want
     insert into table name (column1,column2) values(value1,value2) 
End

how to update the data from textbox to database sql

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