FormatException was unhandled

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1.00/5 (2 votes)

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C#

private void BindGridInventory()
{
  MySqlConnection con = new MySqlConnection("Server=localhost;UID=root;Database=db_cignal");
  MySqlDataAdapter sda = new MySqlDataAdapter("select * from inventory", con);
  MySqlCommandBuilder builder = new MySqlCommandBuilder(sda);
  DataSet dt = new DataSet();
  sda.Fill(dt);///this is where i get the error formatexception

  if (dt.Tables.Count > 0)
  {
    dataGridView1.DataSource = dt.Tables[0];
  }
}

Posted 23-Mar-15 4:58am

_bluRe_

Updated 23-Mar-15 4:59am

Kornfeld Eliyahu Peter

v2

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OriginalGriff · Accepted Answer · 2015-03-23T05:31:00

We can't tell from that: you need to start by looking at your database and what values the inventory table contains. Something is there is "different" and is causing the problem.
If you have a lot of data, it may help if you try retrieving "pages" of information until you find which "page" it's in - then narrow it down to a particular row from there using the same method.

SQL

SELECT * FROM
    (SELECT ColumnA, ColumnB, ROW_NUMBER() OVER (ORDER BY ColumnA DESC) AS R FROM inventory) AS A
WHERE A.R>=0 AND a.R<25