private void DeleteRow(String setName)
{
FlashcardClass flashcard = new FlashcardClass();
flashcard.FlashcardSet = setName;
// Serialize a list of flashcards into a JSON string.
JavaScriptSerializer js = new JavaScriptSerializer();
String jsonFlashcards = js.Serialize(flashcard);
try
{
// Setup an HTTP POST Web Request and get the HTTP Web Response from the server.
WebRequest request = WebRequest.Create("https://localhost:44355/api/flashcards/deletesetofflashcards");
request.Method = "DELETE";
request.ContentLength = jsonFlashcards.Length;
request.ContentType = "application/json";
// Write the JSON data to the Web Request
StreamWriter writer = new StreamWriter(request.GetRequestStream());
writer.Write(jsonFlashcards);
writer.Flush();
writer.Close();
WebResponse response = request.GetResponse();
Stream theDataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(theDataStream);
String data = reader.ReadToEnd();
reader.Close();
response.Close();
}
catch (Exception ex)
{
}
}
protected void btnEdit_Click(object sender, EventArgs e)
{
List<FlashcardClass> setInsert = new List<FlashcardClass>();
String setName = Session["setName"].ToString();
// get the input values from repeater
foreach (RepeaterItem item in rptEdit.Items)
{
FlashcardClass flashcard = new FlashcardClass();
TextBox txtQuestion = (TextBox)item.FindControl("txtQuestion");
if (txtQuestion.Text != null || !(String.IsNullOrWhiteSpace(txtQuestion.Text)))
{
flashcard.FlashcardQuestion = txtQuestion.Text;
}
else if(txtQuestion.Text == null || String.IsNullOrWhiteSpace(txtQuestion.Text))
{
lblMessage.Visible = true;
lblMessage.Text = "Question can't be blank...";
break;
}
TextBox txtAnswer = (TextBox)item.FindControl("txtAnswer");
if (txtAnswer.Text != null || !(String.IsNullOrWhiteSpace(txtAnswer.Text)))
{
flashcard.FlashcardAnswer = txtAnswer.Text;
}
else if (txtAnswer.Text == null || String.IsNullOrWhiteSpace(txtAnswer.Text))
{
lblMessage.Visible = true;
lblMessage.Text = "Answer can't be blank...";
break;
}
TextBox txtImage = (TextBox)item.FindControl("txtImage");
flashcard.FlashcardImage = txtImage.Text;
flashcard.FlashcardSet = setName;
String subject = GetSubject(setName);
flashcard.FlashcardSubject = subject;
flashcard.FlashcardUsername = Session["username"].ToString();
// fill list
setInsert.Add(flashcard);
}
// k have all data
// delete flashcard set
DeleteFlashcardSet(setName);
// re-insert data
Boolean ret = InsertFlashcardSet(setInsert);
if (ret == true)
{
lblMessage.Visible = true;
lblMessage.Text = "Successfully updated " + setName + "!";
}
else
{
lblMessage.Visible = true;
lblMessage.Text = "Error editing " + setName + "...";
}
}
protected void btnAddFlashcard_Click(object sender, EventArgs e)
{
FlashcardClass flashcard = new FlashcardClass();
if (IsFlashcardValid())
{
flashcard.FlashcardSet = txtFlashcardSetName.Text;
flashcard.FlashcardSubject = txtFlashcardSetSubject.Text;
flashcard.FlashcardQuestion = txtFlashcardQuestion.Text;
flashcard.FlashcardAnswer = txtFlashcardAnswer.Text;
flashcard.FlashcardImage = txtImage.Text;
flashcard.FlashcardUsername = lblUserName.Text;
flashcards.Add(flashcard);
//lblError.ForeColor = "green";
lblError.Visible = true;
lblError.Text = "Added flashcard to set!";
btnAddFlashcardSet.Visible = true;
MakeTxtBoxesBlank();
}
}
