mysql database update from textboxes values not working

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please help me i want to know what is wrong with my command it doesnot update my database whe i click the update button
this is inside a buttonclick event
first i open an connection did not put the code here because that works

C#

MySqlCommand sqlcom = new MySqlCommand("UPDATE t_company SET Company_Name=@Company_Name,Description=@Description,Email=@Email where Company_Name=@Company_Name'" + "'", mycon1);
sqlcom.Parameters.Add("@Company_Name", MySqlDbType.VarChar, 100).Value = txtCompany_Name.Text;
               sqlcom.Parameters.Add("@Description", MySqlDbType.VarChar, 100).Value = txtDescriptionNumber.Text;
               sqlcom.Parameters.Add("@Email", MySqlDbType.VarChar, 100).Value = txtEmailText;

C#

sqlcom.Connection = mycon1;
               sqlcom.ExecuteNonQuery();
               mycon1.Close();

Posted 8-Oct-12 3:40am

mrDivan

Updated 8-Oct-12 3:44am

I.explore.code

v2

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I.explore.code · Answer 1 · 2012-10-08T03:47:00

Change this:

C#

MySqlCommand sqlcom = new MySqlCommand("UPDATE t_company SET Company_Name=@Company_Name,Description=@Description,Email=@Email where Company_Name=@Company_Name'" + "'", mycon1);

to this:

C#

MySqlCommand sqlcom = new MySqlCommand("UPDATE t_company SET Company_Name=@Company_Name,Description=@Description,Email=@Email where Company_Name=@Company_Name", mycon1);

i.e. remove the extra quotes that you were appending. Parameterisation in ADO.NET takes care of putting the right quotes for you automatically.

also get rid of:

C#

sqlcom.Connection = mycon1;

as you have already specified it in your MySqlCommand constructor.