/*
* When the "Add Doctor" button is clicked,
* then dispose of the search form and create and show the form for an individual doctor (with fields blank)
*/
private void btnAddNew_Click(object sender, EventArgs e)
{
this.Dispose(); // get rid of search form
frmDoctor newDoctor = new frmDoctor(null); // create an empty doctor form
newDoctor.Show(); // display the new (empty) doctor form
}
/*
* When the View/Edit button is clicked,
* then dispose of the search form and display the form for an individual doctor of
* the row selected in the datagrid
*/
private void btnEdit_Click(object sender, EventArgs e)
{
int doctorID;
int currentRow;
DataRow dRow; // row of a table in the dataset
try
{
currentRow = this.dataGridView1.CurrentRow.Index; // detect the currently selected row
doctorID = (int)this.dataGridView1.CurrentRow.Cells[0].Value; // get the doctorID of the current selected row
dRow = dataSet1.Tables[0].Rows[currentRow]; // get the row of the table (in dataset) that is selected
} catch (Exception e1) // if any problem,
{ // display an error message and exit method
MessageBox.Show("Unable to edit.\n\nYou must first select a single row from the grid of doctors.", "No doctor selected");
return;
}
Doctor editDoc = new Doctor(); // new Doctor object for the selected doctor
editDoc.DocId = doctorID; // populate the doctor ID
editDoc.DocSurname = dRow.ItemArray.GetValue(2).ToString(); // populate the other fields of Doctor object from the
editDoc.DocForename = dRow.ItemArray.GetValue(1).ToString(); // Row of the table in the dataset
Object objPhoto = dRow.ItemArray.GetValue(3);
if (objPhoto.Equals(System.DBNull.Value)) // cannot cast null to a byte array
{
editDoc.DocPhoto = null;
}
else
{
editDoc.DocPhoto = (byte[])objPhoto;
}
editDoc.DocGender = (bool)dRow.ItemArray.GetValue(4);
editDoc.DocAddress = dRow.ItemArray.GetValue(5).ToString();
editDoc.DocPhoneNumber = dRow.ItemArray.GetValue(6).ToString();
editDoc.DocQualification = dRow.ItemArray.GetValue(7).ToString();
editDoc.DeptId = (int)dRow.ItemArray.GetValue(8);
this.Dispose(); // dispose the search form
frmDoctor editDoctor = new frmDoctor(editDoc); // create doctor form from the editDoctor object
editDoctor.Show(); // display the doctor object
}