Курсовая работа: База даних "Телефонний довідник"

this.Text = Variables.Caption + Variables.CurrentUserName + ": " + contactsNumbers.ToString() + " Contacts";

DisableEnableControls(true);

}

else

DisableEnableControls(false);

}

catch (Exception ex)

{

DisableEnableControls(false);

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

}

}

void changeInfoToolStripMenuItem_Click(object sender, EventArgs e)

{

try

{

UserForm changeInfoForm = new UserForm(false, false, true);

changeInfoForm.Font = new Font(this.Font.Name, this.FontSize, this.Font.Style, this.Font.Unit, this.Font.GdiCharSet, this.Font.GdiVerticalFont);

var userElement = from q in Variables.xDocument.Descendants("User")

where q.Attribute("ID").Value == Variables.CurrentUserID

select q;

string username = userElement.First().Attribute("UserName").Value;

string email = userElement.First().Attribute("Email").Value;

changeInfoForm.textBoxUsername.Text = username;

changeInfoForm.textBoxEmail.Text = email;

changeInfoForm.ShowDialog();

if (Variables.CurrentUserName!= "" && Variables.CurrentUserID!= "")

{

int contactsNumbers = Variables.xDocument.Descendants("Item").Where(q => q.Attribute("UserID").Value == Variables.CurrentUserID).Count();

this.Text = Variables.Caption + Variables.CurrentUserName + ": " + contactsNumbers.ToString() + " Contacts";

DisableEnableControls(true);

}

else

DisableEnableControls(false);

}

catch (Exception ex)

{

DisableEnableControls(false);

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

}

}

void aboutProgrammerToolStripMenuItem_Click(object sender, EventArgs e)

{

System.Diagnostics.Process.Start("http://vkontakte.ru/id2688556");

}

#endregion

void LoadPhoneBookItems()

{

try

{

listView1.Items.Clear();

var items = from q in Variables.xDocument.Descendants("Item")

where q.Attribute("UserID").Value == Variables.CurrentUserID

select q;

if (items.Count() < 1)

return;

foreach (var item in items)

{

ListViewItem listViewItems;

if (christianToolStripMenuItem.Checked)

listViewItems = new ListViewItem(new string[]

{ item.Attribute("Name").Value,

item.Attribute("Phone").Value,

item.Attribute("Mobile").Value,

item.Attribute("Email").Value,

item.Attribute("Address").Value,

item.Attribute("RegDate").Value});

else

listViewItems = new ListViewItem(new string[]

{ item.Attribute("Name").Value,

item.Attribute("Phone").Value,

item.Attribute("Mobile").Value,

item.Attribute("Email").Value,

item.Attribute("Address").Value,

ConvertToPersianDate(item.Attribute("RegDate").Value)});

listViewItems.Name = "Item" + item.Attribute("ID").Value;

listView1.Items.Add(listViewItems);

}

}

catch (Exception ex)

{

DisableEnableControls(false);

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

}

}

void ApplySettings()

{

try

{

if (Variables.xDocument == null)

{

DisableEnableControls(false);

return;

}

var Settings = (from q in Variables.xDocument.Descendants("Setting")

where q.Attribute("UserID").Value == Variables.CurrentUserID

select q).First();

if (Settings.Attribute("RightToLeft").Value == "Yes")

rightToLeftToolStripMenuItem_Click(null, null);

else

leftToRightToolStripMenuItem_Click(null, null);

if (Settings.Attribute("Dates").Value == "Persian")

{

persianToolStripMenuItem.Checked = true;

christianToolStripMenuItem.Checked = false;

}

else

{

persianToolStripMenuItem.Checked = false;

christianToolStripMenuItem.Checked = true;

}

this.FontSize = float.Parse(Settings.Attribute("FontSize").Value);

this.Font = new Font(this.Font.Name, this.FontSize, this.Font.Style, this.Font.Unit, this.Font.GdiCharSet, this.Font.GdiVerticalFont);

if (this.FontSize == 8)

{

toolStripMenuItemFontSize8.Checked = true;

toolStripMenuItemFontSize10.Checked = false;

toolStripMenuItemFontSize12.Checked = false;

toolStripMenuItemFontSize14.Checked = false;

toolStripMenuItemFontSize16.Checked = false;

toolStripMenuItemFontSize18.Checked = false;

}

else if (this.FontSize == 10)

{

toolStripMenuItemFontSize8.Checked = false;

toolStripMenuItemFontSize10.Checked = true;

toolStripMenuItemFontSize12.Checked = false;

toolStripMenuItemFontSize14.Checked = false;

toolStripMenuItemFontSize16.Checked = false;

toolStripMenuItemFontSize18.Checked = false;

}

else if (this.FontSize == 12)

{

toolStripMenuItemFontSize8.Checked = false;

toolStripMenuItemFontSize10.Checked = false;

toolStripMenuItemFontSize12.Checked = true;

toolStripMenuItemFontSize14.Checked = false;

toolStripMenuItemFontSize16.Checked = false;

toolStripMenuItemFontSize18.Checked = false;

}

else if (this.FontSize == 14)

{

toolStripMenuItemFontSize8.Checked = false;

toolStripMenuItemFontSize10.Checked = false;

toolStripMenuItemFontSize12.Checked = false;

toolStripMenuItemFontSize14.Checked = true;

toolStripMenuItemFontSize16.Checked = false;

toolStripMenuItemFontSize18.Checked = false;

}

else if (this.FontSize == 16)

{

toolStripMenuItemFontSize8.Checked = false;

toolStripMenuItemFontSize10.Checked = false;

toolStripMenuItemFontSize12.Checked = false;

toolStripMenuItemFontSize14.Checked = false;

toolStripMenuItemFontSize16.Checked = true;

toolStripMenuItemFontSize18.Checked = false;

}

else if (this.FontSize == 18)

{

toolStripMenuItemFontSize8.Checked = false;

toolStripMenuItemFontSize10.Checked = false;

toolStripMenuItemFontSize12.Checked = false;

toolStripMenuItemFontSize14.Checked = false;

toolStripMenuItemFontSize16.Checked = false;

toolStripMenuItemFontSize18.Checked = true;

}

}

catch (Exception ex)

{

DisableEnableControls(false);

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

}

}

void MainForm_Shown(object sender, EventArgs e)

{

try

{

if (!File.Exists(Variables.DBFile))

{

newUserToolStripMenuItem_Click(null, null);

return;

}

Variables.xDocument = XDocument.Parse(TripleDES.DecryptFromFile(Variables.DBFile, TripleDES.ByteKey, TripleDES.IV));

var users = from q in Variables.xDocument.Descendants("User")

select q;

if (users.Count() < 1)//No user exist

{

newUserToolStripMenuItem_Click(null, null);

return;

}

else//More than one user exist

{

changeUserToolStripMenuItem_Click(null, null);

}

}

catch (Exception ex)

{

DisableEnableControls(false);

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

try

{

File.Delete(Variables.DBFile);

}

catch

{

MessageBox.Show("Будь-ласка, видаліть файл бази даних", "Критична помилка", MessageBoxButtons.OK, MessageBoxIcon.Error);

}

}

}

void DisableEnableControls(bool enable)

{

if (enable)

{

changeInfoToolStripMenuItem.Enabled = settingsToolStripMenuItem.Enabled = true;

textBoxSearch.Enabled = listView1.Enabled = true;

buttonNew.Enabled = true;

}

else

{

changeInfoToolStripMenuItem.Enabled = settingsToolStripMenuItem.Enabled = false;

textBoxSearch.Enabled = listView1.Enabled = false;

buttonNew.Enabled = false;

}

}

string ConvertToPersianDate(string stringDate)

{

try

{

DateTime dateTime = DateTime.Parse(stringDate);

PersianCalendar persianCalendar = new PersianCalendar();

var str = persianCalendar.GetYear(dateTime).ToString() + " / " +

persianCalendar.GetMonth(dateTime).ToString() + " / " +

persianCalendar.GetDayOfMonth(dateTime).ToString() + " " +

persianCalendar.GetHour(dateTime).ToString() + ":" +

persianCalendar.GetMinute(dateTime).ToString() + ":" +

persianCalendar.GetSecond(dateTime).ToString();

return str;

}

catch (Exception ex)

{

StackFrame file_info = new StackFrame(true);

Messages.error(ref file_info, ex.Message, this);

return "";

}

}

#region listview

void textBoxSearch_TextChanged(object sender, EventArgs e)

{

try

{

if (textBoxSearch.Text.Trim() == "")

{

LoadPhoneBookItems();

return;

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