protected void Button1_Click(object sender, EventArgs e)
{
String index = Request.QueryString["index"];
CarsInfoEntities db = new CarsInfoEntities();
Brand br = db.Brands.FirstOrDefault(m => m.BrandName == index);
br.BrandName = txtboxBrand.Text;
db.SaveChanges();
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Brand Name has been successfully updated')</script>");
}
protected void Button1_Click(object sender, EventArgs e)
{
String index = Request.QueryString["index"];
String id = Request.QueryString["id"];
CarsInfoEntities db = new CarsInfoEntities();
Car c = db.Cars.FirstOrDefault(m => m.Model == index);
c.Model = txtModel.Text;
c.BrandId = int.Parse(ddlBrand.SelectedValue);
c.Costs = int.Parse(txtCosts.Text);
db.SaveChanges();
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Car details have been successfully updated')</script>");
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
String s = GridView1.DataKeys[e.RowIndex].Value.ToString();
CarsInfoEntities db = new CarsInfoEntities();
Car c = db.Cars.FirstOrDefault(m => m.Model == s);
db.DeleteObject(c);
db.SaveChanges();
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Record has been deleted successfully')</script>");
var result = from t in db.Cars
join x in db.Brands on t.BrandId equals x.BrandId
select new { x.BrandName, t.Model, t.Costs };
GridView1.DataSource = result;
GridView1.DataBind();
}
protected void GridView2_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
String s = GridView2.DataKeys[e.RowIndex].Value.ToString();
CarsInfoEntities db = new CarsInfoEntities();
Brand br = db.Brands.FirstOrDefault(m => m.BrandName == s);
db.DeleteObject(br);
db.SaveChanges();
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Record has been deleted successfully')</script>");
var data = from a in db.Brands
select new { a.BrandName };
GridView1.Visible = true;
GridView2.Visible = false;
GridView1.DataSource = data;
GridView1.DataBind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
String s = GridView1.DataKeys[e.RowIndex].Value.ToString();
CarsInfoEntities db = new CarsInfoEntities();
Brand br = db.Brands.FirstOrDefault(m => m.BrandName == s);
db.DeleteObject(br);
try
{
db.SaveChanges();
}
catch (Exception)
{
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Cannot delete record. Foreign key constraint violated.')</script>");
}
ClientScript.RegisterClientScriptBlock(GetType(), "Javascript", "<script>alert('Record has been deleted successfully')</script>");
var data = from a in db.Brands
select new { a.BrandName };
GridView1.DataSource = data;
GridView1.DataBind();
}
