private void Form8_Load(object sender, EventArgs e)
{
FileStream Data = new FileStream("FilesName.txt", FileMode.Open);
StreamReader sr = new StreamReader(Data);
while (sr.Peek() != -1)
{
Filename = sr.ReadLine();
}
sr.Close();
FileStream Data1 = new FileStream(Filename, FileMode.Open);
StreamReader sr1 = new StreamReader(Data1);
FileName = sr1.ReadLine();
num_attributes = sr1.ReadLine();
sr1.Close();
DynamicTable Table = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
Table.Write_In_Attributes(Filename);
for (int i = 0; i < Table.Columns; i++)
{
comboBox1.Items.Add(Table.Attributes[i]);
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
int sorted = 0;
int writeagin = 0;
string swape = "";
FileStream Data = new FileStream("FilesName.txt", FileMode.Open);
StreamReader sr = new StreamReader(Data);
while (sr.Peek() != -1)
{
Filename = sr.ReadLine();
}
sr.Close();
FileStream Data1 = new FileStream(Filename, FileMode.Open);
StreamReader sr1 = new StreamReader(Data1);
FileName = sr1.ReadLine();
num_attributes = sr1.ReadLine();
sr1.Close();
DynamicTable Table = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
Table.ReadFromXml();
if (comboBox1.Text == "RRN")
{
DataTable T = new DataTable();
for (int i = 0; i < Table.Columns; i++)
{
T.Columns.Add(Table.Attributes[i]);
}
DataRow row;
for (int i = 0; i < Table.Rows; i++)
{
row = T.NewRow();
for (int j = 0; j < Table.Columns; j++)
{
row[Table.Attributes[j]] = Table.table[i][j];
}
T.Rows.Add(row);
}
dataGridView1.DataSource = T;
}
else
{
for (int i = 0; i < Table.Columns; i++)
{
if (sort[i] == comboBox1.Text)
{
sorted++;
break;
}
}
if (sorted == 0)
{
sort[size] = comboBox1.Text;
size++;
try
{
for (int i = 0; i < Table.Columns; i++)
{
if (Table.Attributes[i] == comboBox1.Text)
{
x = i;
break;
}
}
for (int i = 0; i < Table.Rows - 1; i++)
{
for (int j = i + 1; j < Table.Rows; j++)
{
if (Convert.ToInt32(Table.table[i][x]) > Convert.ToInt32(Table.table[j][x]))
{
for (int n = 0; n < Table.Columns; n++)
{
swape = Table.table[i][n];
Table.table[i][n] = Table.table[j][n];
Table.table[j][n] = swape;
}
}
}
}
}
catch
{
sorted = 0;
List <string> myList = new List <string>();
for (int n = 0; n < Table.Rows; n++)
{
myList.Add(Table.table[n][x]);
}
myList.Sort();
foreach (string name in myList)
{
for (int y = 0; y < Table.Rows; y++)
{
if (name == Table.table[y][x] && y != sorted)
{
for (int n = 0; n < Table.Columns; n++)
{
swape = Table.table[y][n];
Table.table[y][n] = Table.table[sorted][n];
Table.table[sorted][n] = swape;
}
}
}
sorted++;
}
}
////////////////////////////////////////////
for (int g = 0; g < Table.Rows; g++)
{
if (writeagin == 0)
{
XmlWriter Xw = XmlWriter.Create(comboBox1.Text + ".xml");
Xw.WriteStartDocument();
Xw.WriteStartElement("Table");
Xw.WriteAttributeString("Name", comboBox1.Text + ".xml");
Xw.WriteStartElement("Record");
for (int i = 0; i < Table.Columns; i++)
{
Xw.WriteStartElement(Table.Attributes[i]);
Xw.WriteString(Table.table[0][i]);
Xw.WriteEndElement();
}
Xw.WriteEndElement();
Xw.WriteEndElement();
Xw.WriteEndDocument();
Xw.Close();
writeagin++;
}
else
{
XmlDocument Doc = new XmlDocument();
XmlElement Record = Doc.CreateElement("Record");
XmlElement Node;
XmlDocument Doc1 = new XmlDocument();
Doc1.Load(comboBox1.Text + ".xml");
XmlNodeList MYList = Doc1.GetElementsByTagName("Record");
for (int i = 0; i < Table.Columns; i++)
{
Node = Doc.CreateElement(Table.Attributes[i]);
Node.InnerText = Table.table[g][i];
Record.AppendChild(Node);
}
Doc.Load(comboBox1.Text + ".xml");
XmlElement Root = Doc.DocumentElement;
Root.AppendChild(Record);
Doc.Save(comboBox1.Text + ".xml");
}
}
}
XmlDocument z = new XmlDocument();
z.Load(comboBox1.Text + ".xml");
XmlNodeList MY_List = z.GetElementsByTagName("Record");
XmlNodeList No_de;
table = new string[MY_List.Count][];
for (int i = 0; i < MY_List.Count; i++)
{
table[i] = new string[Table.Columns];
}
for (int i = 0; i < Table.Rows; i++)
{
No_de = MY_List[i].ChildNodes;
for (int j = 0; j < Table.Columns; j++)
{
table[i][j] = No_de[j].InnerText;
}
}
DataTable T = new DataTable();
for (int i = 0; i < Table.Columns; i++)
{
T.Columns.Add(Table.Attributes[i]);
}
DataRow row;
for (int i = 0; i < Table.Rows; i++)
{
row = T.NewRow();
for (int j = 0; j < Table.Columns; j++)
{
row[Table.Attributes[j]] = table[i][j];
}
T.Rows.Add(row);
}
dataGridView1.DataSource = T;
}
MessageBox.Show("Operation is done", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch
{
MessageBox.Show("File Is Empty !!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button3_Click(object sender, EventArgs e)
{
/*
* this button for search by binary search algorithm
*/
try
{
flage = true;
FileStream Data = new FileStream("FilesName.txt", FileMode.Open);
StreamReader sr = new StreamReader(Data);
while (sr.Peek() != -1)
{
Filename = sr.ReadLine();
}
sr.Close();
FileStream Data1 = new FileStream(Filename, FileMode.Open);
StreamReader sr1 = new StreamReader(Data1);
FileName = sr1.ReadLine();
num_attributes = sr1.ReadLine();
sr1.Close();
DynamicTable Table = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
Table.Write_In_Attributes(Filename);
if (string.IsNullOrEmpty(textBox1.Text.ToString()))
{
flage = false;
MessageBox.Show("Invaild !!", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
RRN = Convert.ToInt32(textBox1.Text.ToString());
if (Table.BinarySearch(RRN) && Flag == false)
{
for (int i = 0; i < Table.Columns; i++)
{
AddNewlabel(i + 1, Table.Attributes[i]);
AddNewTextBox(i + 1, Table.Record[0][i]);
}
Flag = true;
}
else if (Table.BinarySearch(RRN) && Flag == true)
{
int i = 0;
foreach (Control x in Controls)
{
if (x.Name.Contains("txt"))
{
x.Text = Table.Record[0][i];
i++;
}
}
}
else
{
flage = false;
MessageBox.Show("Record Is Not Exits !!");
}
textBox1.Clear();
}
}
catch
{
flage = false;
MessageBox.Show("File is Empty !!", "Erro", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button2_Click(object sender, EventArgs e)
{
/*
* This Button For Updata
*/
if (flage == true)
{
try
{
FileStream Data = new FileStream("FilesName.txt", FileMode.Open);
StreamReader sr = new StreamReader(Data);
while (sr.Peek() != -1)
{
Filename = sr.ReadLine();
}
sr.Close();
FileStream Data1 = new FileStream(Filename, FileMode.Open);
StreamReader sr1 = new StreamReader(Data1);
FileName = sr1.ReadLine();
num_attributes = sr1.ReadLine();
sr1.Close();
DynamicTable Table = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
Table.ReadFromXml();
/////////////////////////////////////////////////////
int n = 0;
int n1 = 0;
for (int i = 0; i < Table.Rows; i++)
{
if (Convert.ToInt32(Table.table[i][0]) == RRN)
{
n = i;
break;
}
}
foreach (Control x in Controls)
{
if (x.Name.Contains("txt"))
{
Table.Record[0][n1] = x.Text.ToString();
n1++;
}
}
for (int j = 0; j < Table.Columns; j++)
{
Table.table[n][j] = Table.Record[0][j];
}
for (int i = 0; i < Table.Rows; i++)
{
Table.WriteToXml_Agian(i, 'u');
}
MessageBox.Show("Succesfuly updated !! ", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
MessageBox.Show("RRN Will Not Be Changed For Ever it is constant ", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch
{
MessageBox.Show("File Is Empty !!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("You Must Press Button Search to display the record in text box", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void button1_Click(object sender, EventArgs e)
{
/*
* For Delete a record
*/
if (flage == true)
{
try
{
FileStream Data = new FileStream("FilesName.txt", FileMode.Open);
StreamReader sr = new StreamReader(Data);
while (sr.Peek() != -1)
{
Filename = sr.ReadLine();
}
sr.Close();
FileStream Data1 = new FileStream(Filename, FileMode.Open);
StreamReader sr1 = new StreamReader(Data1);
FileName = sr1.ReadLine();
num_attributes = sr1.ReadLine();
sr1.Close();
DynamicTable Table = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
Table.ReadFromXml();
string[][] T;
if (Table.Rows > 1)
{
T = new String[Table.Rows - 1][];
for (int i = 0; i < Table.Rows - 1; i++)
{
T[i] = new string[Table.Columns];
}
Table.row_is_1 = false;
}
else
{
T = new String[1][];
for (int i = 0; i < Table.Rows; i++)
{
T[i] = new string[Table.Columns];
}
Table.row_is_1 = true;
}
int j = 0;
for (int i = 0; i < Table.Rows; i++)
{
if (Convert.ToInt32(Table.table[i][0]) == RRN)
{
//delete
continue;
}
else
{
for (int k = 0; k < Table.Columns; k++)
{
T[j][k] = Table.table[i][k];
}
j++;
}
}
if (Table.Rows > 1)
{
Table.Rows -= 1;
}
Table.table = new String[Table.Rows][];
for (int i = 0; i < Table.Rows; i++)
{
Table.table[i] = new string[Table.Columns];
}
for (int i = 0; i < Table.Rows; i++)
{
for (int o = 0; o < Table.Columns; o++)
{
Table.table[i][o] = T[i][o];
}
}
for (int i = 0; i < Table.Rows; i++)
{
Table.WriteToXml_Agian(i, 'd');
}
foreach (Control R in Controls)
{
if (R.Name.Contains("txt"))
{
R.ResetText();
}
}
MessageBox.Show("Deleted Is Done !!", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch
{
MessageBox.Show("File Is Empty !!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("You Must Press Button Search to display the record in text box", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void button1_Click(object sender, EventArgs e)
{
bool empty = false;
try
{
string word = comboBox1.SelectedItem.ToString();
string value = textBox1.Text.ToString();
if (string.IsNullOrEmpty(textBox1.Text))
{
MessageBox.Show("It Is Not Vaild !!");
empty = true;
}
bool flag = false;
int index = 0;
//this must be change to file
DynamicTable a = new DynamicTable(Convert.ToInt32(num_attributes), FileName);
//a.Write_In_Attributes(Filename);
a.ReadFromXml();
for (int i = 0; i < a.Columns; i++)
{
if (word == a.Attributes[i].ToString())
{
index = i;
break;
}
}
for (int i = 0; i < a.Rows; i++)
{
if (a.table[i][index] == value)
{
flag = true;
break;
}
}
if (flag)
{
Data.Rows.Clear();
if (Data.Columns.Count == 0)
{
for (int i = 0; i < a.Columns; i++)
{
Data.Columns.Add(a.Attributes[i], a.Attributes[i]);
}
}
for (int i = 0; i < a.Rows; i++)
{
if (value == a.table[i][index])
{
Data.Rows.Add(a.table[i]);
}
}
}
else if (flag == false && empty == false)
{
MessageBox.Show("Record Not Exist !! ");
}
}
catch
{
MessageBox.Show("It Is Not Vaild !!");
}
}
