Question

Hi i have this code and it give me error:

Type of value has a mismatch with column typeCouldn’t store <10/1/2012
3:43:30 PM> in time_in_am Column. Expected type is MySqlDateTime.

my mySQL data type for “time_in_am” is DateTime.

dataRow = dataSet.Tables(0).NewRow()
dataRow("time_in_am") = DateTime.Now
dataSet.Tables(0).Rows.Add(dataRow)

Answer 1

I believe MySQL’s accepted DateTime format is yyyy-mm-dd hh:mm:ss

So, alter the 2nd row of your code to:

dataRow("time_in_am") = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")

For what each of the format ‘magic strings’ mean, see here

If you find yourself using this often (which is probable) you can create an extension:

Imports System.Runtime.CompilerServices

Public Module MyExtensions

    <Extension()>
    Public Function ToMySql(d As Date) As String
        Return d.ToString("yyyy-MM-dd HH:mm:ss")
    End Function

End Module

Now you can use this in your code as follows:

dataRow("time_in_am") = DateTime.Now.ToMySql()