I want to display SQL employee name in textbox in MVC create view

Question

1.00/5 (1 vote)

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i get the error
<pre>'ExecuteScalar: Connection property has not been initialized.'

if you have other suggestion please specify

What I have tried:

this is what i tried
controller
 string constring = ConfigurationManager.ConnectionStrings["DbContext"].ToString();
            SqlConnection con = new SqlConnection(constring);
            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "SELECT MAX(Product_Code)+1 As Product_Code FROM Add_Product";
            con.Open();
            ViewBag.name = cmd.ExecuteScalar().ToString();
            con.Close();
            DBContext DB = new DBContext();
Create View
<pre>   @Html.TextBox("txtTitle", (string)ViewBag.name)

Posted 31-Oct-20 22:25pm

Property Of Praveen pop

Updated 1-Nov-20 1:50am

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Comments

Richard Deeming 2-Nov-20 10:18am

NB: Your code suggests that you are trying to pre-allocate a sequential number for the next record. If you have multiple users using your application at the same time - and you will! - they'll all end up trying to insert the same record.

Use an IDENTITY column or a SEQUENCE instead, which will insert the next number when the record is saved.

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F-ES Sitecore · Answer 1 · 2020-11-01T01:51:00

Solution 1

The error message is telling you the command doesn't have a connection.

SqlCommand cmd = new SqlCommand();
cmd.Connection = con; // add this

Posted 1-Nov-20 1:51am

F-ES Sitecore

Comments

Property Of Praveen pop 1-Nov-20 9:44am

error is cleared but i couldn't display value from database into textbox

F-ES Sitecore 1-Nov-20 10:26am

There's nothing particularly wrong with the code so check the ViewBag.name has the data you expect.