well I have been looking for the solution for two days for this small question but still no proper answer so plz don't ignore or put crap comments
this is what I want ,I got two tables in my Access DataBase which connected with One-to-Many Relationship and I also use DataSet with CommandBuilder in my C# Project
I don't know much more about DataBase cause I have learned about DataBase from Home and Learn site (both Access and SQL) recently and still know how to work with one table or multiple where there no relationship but in this case I want to use Two Tables with relationship
this is part of my project
private void btnloginsubmit_Click(object sender, EventArgs e)
{
if (validation() == true)
{
_accessAda.SelectCommand = _accessCommand; //give the connection's detail and command string (the default command string about to add first table)
_accessCom = new System.Data.OleDb.OleDbCommandBuilder(_accessAda); //reopen the connection
_accessAda.Fill(_accessSet, "tblProject");
_accessCon.Close(); //close the connection
Console.WriteLine("number of tables returned {0}", _accessSet.Tables.Count);
_arrayRow = _accessSet.Tables["tblProject"].Select("user_userName='" + _userName + "'"); //get the user name
Console.WriteLine("got the row");
if (_arrayRow.Length > 0) //if available
{
_singleRow = _arrayRow[0]; //get that row;
if (_userPassword == _singleRow["user_password"].ToString()) //check the password is correct
{
_singleRow["user_lastVisited"] = DateTime.Now; //get the last visited date;
_accessCom = new System.Data.OleDb.OleDbCommandBuilder(_accessAda); //reopen the connection
_accessAda.Update(_accessSet, "tblProject");@@**
_accessCon.Close();
Console.WriteLine("everything done");
dataPulling(); //data pulling step
}
else
{
Console.WriteLine("password is incorrect.!!");
MessageBox.Show("password is incorrect.!!");
}
}
else
{
Console.WriteLine("there is no such a user name found in the database");
MessageBox.Show("there is no such a user name found in the database");
}
}
}@@**here I got a trouble when I use CommandBuilder cause I Bound two tables into a Query so it says can't update Multiple Tables ,obviously it might be cause DataAdapter doesn't know which table need to pick to update but I don't know any other alternative way to do this work ,that's what I really need to know
I could find some suggestions
return Tables separately and Insert Data into them and Update separately using CommandBuilder also use InsertCommand with CommandText Properties
<- but there is a relationship ah.? also I don't like this method cause I can't see it's a effective way to work with databases
I need alternative way to Update the Query(got Two Tables with it)beside CommandBuilder I believe there should be a way to do that.
Thanks.!
