Error when inserting in database

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Everytime when I run the program it says

An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll

Additional information: String or binary data would be truncated.

The statement has been terminated.

Please keep it simple in the solutions, i'm kinda new to C#.

What I have tried:

C#

private void button1_Click(object sender, EventArgs e)
{
 con = new SqlConnection("The Database connection string")
 con.Open();
 cmd = new SqlCommand("INSERT INTO Storage (Serial,Name) VALUES (@Serial,@Name)",     con);
 cmd.Parameters.Add("@Serial", txtSerial.Text);
 cmd.Parameters.Add("@Name", txtName.Text);
 cmd.ExecuteNonQuery();
}

Posted 3-Jan-17 4:58am

Member 12932743

Updated 3-Jan-17 6:14am

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[no name] 3-Jan-17 11:11am

Do you know how to use google? You are trying to stuff more information into a table column than it is setup to handle.

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P_Z · Answer 1 · 2017-01-03T05:10:00

Solution 1

Hi, it could be that at least one of Serial or Name has length > database table column.

Posted 3-Jan-17 5:10am

P_Z

Peter Leow · Answer 2 · 2017-01-03T05:22:00

Literally as the error message said: you are trying to insert a string or binary data that is longer than the max length set for the target field. You have to find out which field is the culprit. To resolve this, you may change the max length allowed for that field or limit the length of the input data through validation, depending on your requirements.

Pradeep Prasanna Ekanayaka · Answer 3 · 2017-01-03T06:14:00

try
           {
               using (SqlConnection connection = new SqlConnection(connectionString))
               {
                   using (SqlCommand cmd = new SqlCommand("INSERT INTO Storage (Serial,Name) VALUES (@Serial,@Name)", con))
                   {
                       connection.Open();
                       cmd.Parameters.Clear();
                       cmd.Parameters.Add("@Serial", txtSerial.Text);
                       cmd.Parameters.Add("@Name", txtName.Text);
                       int res=cmd.ExecuteNonQuery();
                       if (res > 0)
                       {
                           MessageBox.Show("Done");
                       }
                       else
                       {
                           MessageBox.Show("Error");
                       }

                       connection.Close();
                   }

               }
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.ToString());
           }

please use sql quary after connection variable name like this

using (SqlCommand cmd = new SqlCommand("INSERT INTO Storage (Serial,Name) VALUES (@Serial,@Name)", ******** /*this place*/))

Error when inserting in database

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