DISPLAY DATA IN THE GRIDVIEW
The following code will help to display the data in the grid view.
private void getData()
{
//Here TestEntities is the class which is given from "Save entity connection setting in web.config"
TestEntities context = new TestEntities();
var query = from data in context.Employee
orderby data.name
select data;
//Bind Data to Gridview
grdEmployeeData.DataSource = query;
grdEmployeeData.DataBind();
}
Output
INSERT DATA IN THE EMPLOYEE TABLE
Use the following code to add the new employee:
private void insertData()
{
//Here TestEntities is the class which is given from "Save entity connection setting in web.config"
TestEntities context = new TestEntities();
// Create a new employee
Employee objEmployee = new Employee();
objEmployee.name = "Employee Four";
objEmployee.address = "Address Four";
//Add the created Employee object to context.
context.AddToEmployee(objEmployee);
context.SaveChanges();
}
Output
UPDATE DATA IN THE DATABASE
You can use the following code to update the employee details:
public void updateData()
{
//Here TestEntities is the class which is given from "Save entity connection setting in web.config"
TestEntities context = new TestEntities();
var query = from data in context.Employee
orderby data.name
select data;
foreach (Employee details in query)
{
if (details.id == 1)
{
//Assign the new values to name whose id is 1
details.name = "Updated Employee One";
}
}
//Save the changes back to database.
context.SaveChanges();
}
Output
DELETE THE EMPLOYEE DETAILS FROM DATABASE
You can use the following code to delete the employee details from the database:
public void deleteData()
{
//Here TestEntities is the class which is given from "Save entity connection setting in web.config"
TestEntities context = new TestEntities();
var query = (from data in context.Employee
where data.id == 1
orderby data.name
select data).First();
context.Attach(query);
//DeleteObject is used to the delete the entity onject.
context.DeleteObject(query);
context.SaveChanges();
}
OUTPUT
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