Рефераты. База даних "Телефонний довідник"

{

try

{

if (listView1.SelectedItems.Count < 1) return;

if (MessageBox.Show("Ви впевнені, що хочете видалити запис,його потім не відновиш?", "Попередження", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.No) return;

string id = listView1.SelectedItems[0].Name.Replace("Item", "");

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

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

select q).First();

item.Remove();

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

//Variables.xDocument.Save("debug.xml");

LoadPhoneBookItems();

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

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

}

catch (Exception ex)

{

StackFrame file_info = new StackFrame(true);

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

}

}

#endregion

#region Menu Strip Events

#region Settings

void rightToLeftToolStripMenuItem_Click(object sender, EventArgs e)

{

try

{

rightToLeftToolStripMenuItem.Checked = true;

leftToRightToolStripMenuItem.Checked = false;

textBoxSearch.RightToLeft = RightToLeft.Yes;

listView1.RightToLeft = RightToLeft.Yes;

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

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

select q).First();

query.Attribute("RightToLeft").Value = "Yes";

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

//Variables.xDocument.Save("debug.xml");

}

catch { }

}

void leftToRightToolStripMenuItem_Click(object sender, EventArgs e)

{

try

{

leftToRightToolStripMenuItem.Checked = true;

rightToLeftToolStripMenuItem.Checked = false;

textBoxSearch.RightToLeft = RightToLeft.No;

listView1.RightToLeft = RightToLeft.No;

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

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

select q).First();

query.Attribute("RightToLeft").Value = "NO";

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

}

catch { }

}

void toolStripMenuItemFontSize_Click(object sender, EventArgs e)

{

try

{

toolStripMenuItemFontSize8.Checked = toolStripMenuItemFontSize10.Checked = toolStripMenuItemFontSize12.Checked = toolStripMenuItemFontSize14.Checked = toolStripMenuItemFontSize16.Checked = toolStripMenuItemFontSize18.Checked = false;

ToolStripMenuItem menuItem = sender as ToolStripMenuItem;

menuItem.Checked = true;

this.FontSize = float.Parse(menuItem.Text.Trim());

if (this.Font.Size!= this.FontSize)

{

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

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

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

select q).First();

query.Attribute("FontSize").Value = this.FontSize.ToString();

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

//Variables.xDocument.Save("debug.xml");

}

}

catch { }

}

void christianToolStripMenuItem_Click(object sender, EventArgs e)

{

christianToolStripMenuItem.Checked = true;

persianToolStripMenuItem.Checked = false;

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

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

select q).First();

query.Attribute("Dates").Value = "Christian";

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

//Variables.xDocument.Save("debug.xml");

}

void persianToolStripMenuItem_Click(object sender, EventArgs e)

{

christianToolStripMenuItem.Checked = false;

persianToolStripMenuItem.Checked = true;

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

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

select q).First();

query.Attribute("Dates").Value = "Persian";

TripleDES.EncryptToFile(Variables.xDocument.ToString(SaveOptions.DisableFormatting), Variables.DBFile, TripleDES.ByteKey, TripleDES.IV);

//Variables.xDocument.Save("debug.xml");

}

#endregion

void exitToolStripMenuItem_Click(object sender, EventArgs e)

{

this.Close();

}

void newUserToolStripMenuItem_Click(object sender, EventArgs e)

{

try

{

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

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

newUserForm.ShowDialog();

ApplySettings();

LoadPhoneBookItems();

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 changeUserToolStripMenuItem_Click(object sender, EventArgs e)

{

try

{

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

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

userForm.ShowDialog();

ApplySettings();

LoadPhoneBookItems();

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 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);

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