/**
* <summary>
* This event handler deletes from the db using EF
* </summary>
*
* @method GridView_RowDeleting
* @param {object} sender
* @param {GridViewDeleteEventArgs} e
* @returns {void}
*/
protected void BasketballGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
// store which row was clicked
int selectedRow = e.RowIndex;
// get the selected StudentID using the Grid's DataKey collection
int basketballID = Convert.ToInt32(BasketballGridView.DataKeys[selectedRow].Values["basketballID"]);
// use EF to find the selected student in the DB and remove it
using (DefaultConnection db = new DefaultConnection())
{
// create object of the Student class and store the query string inside of it
Basketball deletedBasketball = (from basketballRecords in db.Basketball
where basketballRecords.basketballID == basketballID
select basketballRecords).FirstOrDefault();
// remove the selected rom the db
db.Students.Remove(deletedBasketball);
// save my changes back to the database
db.SaveChanges();
// refresh the grid
this.GetBasketball();
}
}
protected void GetBasketball()
{
// populate teh form with existing data from the database
int basketballID = Convert.ToInt32(Request.QueryString["basketballID"]);
// connect to the EF DB
using (DefaultConnection db = new DefaultConnection())
{
Basketball updatedBasketball = (from basketball in db.Basketball
where basketball.basketballtID == basketballID
select basketball).FirstOrDefault();
if (updatedBasketball != null)
{
teamName1TextBox.Text = updatedBasketball.teamName1;
teamName2TextBox.Text = updatedBasketball.teamName2;
}
}
}
protected void SaveButton_Click(object sender, EventArgs e)
{
// Use EF to connect to the server
using (DefaultConnection db = new DefaultConnection())
{
// save a new record
Basketball newBasketball = new Basketball();
int basketballID = 0;
if (Request.QueryString.Count > 0)
{
// get the id from the URL
basketballID = Convert.ToInt32(Request.QueryString["basketballtID"]);
newBasketball = (from basktball in db.Basketball
where basketball.basketballID == basketballID
select Basketball).FirstOrDefault();
}
newBasketball.teamName1 = teamName1TextBox.Text;
newBasketball.teamName2 = teamName2TextBox.Text;
if (basketballID == 0)
{
db.Basketball.Add(newBasketball);
}
// save our changes - also updates and inserts
db.SaveChanges();
// Redirect back to the updated page
Response.Redirect("~/BasketballF.aspx");
}
}
