Datagridview problem. fill & update

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C#

SQL-Server

DataGridView

Hello everybody. I have form which getting data from table 'Selling' in this table is next columns

ID - int (have primary key)
BarCode - varchar(100)
ArtNumber - varchar(100)
ProductName - varchar(100)
Price - money
SelfPrice - money
PriceWithOutAWD - money
Comment - nvarchar(50)
DateTime - datetime
Quantity - nvarchar(50)

DataGridView DataSource is sellingBindingSource1. In this for is toolStripMenu with button this button

private void TsmRefresh_Click(object sender, EventArgs e)
        {
            sqlDataAdapter1.Fill(dataSet11);
        }

when i press this button it does not refresh it dublicates same data
next button gets this error Failed to convert parameter value from a String to a Int32. this is button:

private void TsmUpdate_Click(object sender, EventArgs e)
       {
           sqlDataAdapter1.Update(dataSet11);
       }

so my datagridview have problems. Does anybody knows where is problem?
When this form is loading this code works fine :

private void TradeLog_Load(object sender, EventArgs e)
  {
      sqlDataAdapter1.Fill(dataSet11);
  }

Thanks.