119 lines
3.8 KiB
C#
119 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Text.Json;
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using System.Windows.Forms;
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namespace it_projekt
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{
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public partial class Form1 : Form
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{
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private Database db = null;
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public Form1()
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{
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InitializeComponent();
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this.exportBtn.Enabled = false;
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}
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private void exportBtn_Click(object sender, EventArgs e)
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{
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if (jsonRBtn.Checked)
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export("All files (*.*)|*.*|json files (*.json)|*.json", "benutzer.json");
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else
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export("All files (*.*)|*.*|xml files (*.xml)|*.xml", "benutzer.xml");
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}
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private void loginBtn_Click(object sender, EventArgs e)
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{
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LoadUsersFromTable(this.userTxt.Text, this.passTxt.Text);
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}
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public void LoadUsersFromTable(string user, string password)
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{
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db = Database.getDatabase(user, password);
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if (db.Persons == null)
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{
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Database.resetDatabase();
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MessageBox.Show("Connection to Database failed! \nPlease Try again.", "Database Error!");
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}
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else {
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foreach (Person person in db.Persons)
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{
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this.dataGrid.Rows.Add(person.Id, person.Firstname, person.Lastname, person.department_short, person.department_long, person.CreationDate, false);
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}
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this.loginBtn.Enabled = false;
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this.exportBtn.Enabled = true;
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}
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}
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private void dataGrid_CellContentClick(object sender, DataGridViewCellEventArgs e)
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{
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}
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private void export(string Filter, string FileName)
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{
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Stream myStream;
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SaveFileDialog saveFileDialog1 = new SaveFileDialog();
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saveFileDialog1.Filter = Filter;
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saveFileDialog1.FilterIndex = 2;
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saveFileDialog1.RestoreDirectory = true;
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saveFileDialog1.FileName = FileName;
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if (saveFileDialog1.ShowDialog() == DialogResult.OK)
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{
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if ((myStream = saveFileDialog1.OpenFile()) != null)
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{
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List<Person> markedUsers = new List<Person>();
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foreach (DataGridViewRow row in dataGrid.Rows)
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{
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if (row.Cells[6].Value != null)
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{
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if (row.Cells[6].Value.ToString() == "True")
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{
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markedUsers.Add(db.Persons.Find(person => person.Id == row.Cells[0].Value.ToString()));
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}
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}
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}
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StreamWriter sw = new StreamWriter(myStream);
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if (FileName.Contains("xml"))
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{
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var writer = new System.Xml.Serialization.XmlSerializer(typeof(List<Person>));
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writer.Serialize(sw, markedUsers);
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}
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else //If xml is not selected, json is the only other option
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{
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string json = JsonSerializer.Serialize(markedUsers);
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sw.Write(json);
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}
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sw.Flush();
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sw.Close();
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myStream.Close();
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}
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}
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}
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private void Form1_Load(object sender, EventArgs e)
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{
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}
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private void jsonRBtn_CheckedChanged(object sender, EventArgs e)
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{
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}
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private void xmlRBtn_CheckedChanged(object sender, EventArgs e)
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{
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}
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}
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}
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