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Old July 18th, 2007, 08:19 PM
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Default Read from data grid

Hello,
  I am writing a windows uplication in which i have to read from database ,(while reading i m sorting it using "select * from tabel order by column").display it in datagrid.Edit the datagrid and reflect back the changes(in the sorted order) to database.

 datagrid's readonly property is set to false.
  I am able to read from database and display it.Problem is when i try to save it back .it is not allowing it.


 My code looks like this

  oledbDataAdapter adap;
  DataSet ds = new DataSet();
  oledbCommandBuilder cmd = new oledbCommandBuilder();

   // to fill datagrid
  adap = new oledbDataAdapter(select * from table order by column);
  adap.Fill(ds);
  datagrid1.datasource = ds.Tables[0];

  //to reflect changes to database
 // this is in another function


  cmd.DataAdapter = adap;
  adap.Update(ds); //runtime error is occureing in this statement


  Is there any property required to make datagrid an editable.

  thanking you

watashi






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Old July 20th, 2007, 04:54 AM
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Send a message via MSN to asdf4525qd
Default

Hello Watashi
My code is:
    string Cstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + "\\Managedb.mdb;Persist Security Info=False;Jet OLEDB:Database Password=123456";
   string SQLStr = "Select * From JHK ";
   OleDbConnection MyCon = new OleDbConnection(Cstring);
   MyCon.Open();
   OleDbCommand Mycom = new OleDbCommand();
   Mycom.Connection = MyCon;
   Mycom.CommandType = CommandType.Text;
   Mycom.CommandText = SQLStr;
   Mycom.ExecuteNonQuery();
   dataGridView1.DataSource = MyCon;
   OleDbDataAdapter myadapter = new OleDbDataAdapter();
   DataSet mydataset= new DataSet();
   myadapter.SelectCommand = new OleDbCommand(SQLStr, MyCon);
   myadapter.Fill(mydataset,"JHK"); d
   ataGridView1.DataSource = mydataset.Tables["JHK"];
This is an instance in MSDN. The MSDN is so good that you'll find many code witch you wanted.


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Old July 23rd, 2007, 03:12 AM
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Belated thanks,

 


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