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Form1.cs
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Form1.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Windows.Forms;
namespace DatabaseModelCreator
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
HideItems();
}
#region FormControls
/// <summary>
/// Fetch Tables button click
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
try
{
string connString = txtConnString.Text;
(bool success, string errorMessage) = ValidationHelper.ValidateConnString(connString);
if (!success)
{
MessageBox.Show(errorMessage);
return;
}
// Fetch all tables
List<string> tables = DatabaseHelper.FetchTables(connString);
// Fetch all views
List<string> views = DatabaseHelper.FetchViews(connString);
if (tables.IsEmpty() && views.IsEmpty())
{
MessageBox.Show("No table or view exist in the database. Please try with different database");
return;
}
BindTablesAndViewToGenerate(tables, views);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
/// <summary>
/// Generate model button click
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
try
{
string outDir = txtoutDir.Text;
// Check if output directory is empty
if (string.IsNullOrWhiteSpace(outDir))
{
MessageBox.Show("Please enter the output directory");
return;
}
// Check if output directory is valid
if (!Directory.Exists(outDir))
{
MessageBox.Show("Directory does not exist. Please enter the correct directory");
return;
}
// If no table or view is selected
if (TablesList.CheckedIndices.Count == 0 && ViewsList.CheckedIndices.Count == 0)
{
MessageBox.Show("Please select some tables or views first before proceeding");
return;
}
// Generate the model of selected tables
GenerateModelsFromTables(outDir, txtConnString.Text);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
/// <summary>
/// Reset the current connection
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnReset_Click(object sender, EventArgs e)
{
ClearItems();
HideItems();
}
#endregion
#region PrivateMethods
/// <summary>
/// Bind the table to the checkboxes
/// </summary>
/// <param name="tables"></param>
private void BindTablesAndViewToGenerate(List<string> tables, List<string> views)
{
// Flush previous items
ClearItems();
ShowItems();
// Bind Tables and Views
TablesList.Items.AddRange(tables.ToArray());
ViewsList.Items.AddRange(views.ToArray());
}
/// <summary>
/// Hide items on page load
/// </summary>
private void HideItems(bool show = false)
{
// Enable the connection string textbox
txtConnString.Enabled = true;
//Hide labels
lblTables.Hide();
lblViews.Hide();
lbloutDir.Hide();
//Hide Textboxes and list
TablesList.Hide();
ViewsList.Hide();
txtoutDir.Hide();
//Hide buttons
btnGenerate.Hide();
btnReset.Hide();
}
/// <summary>
/// Show items on page load
/// </summary>
private void ShowItems(bool show = false)
{
// Disable the connection string textbox
txtConnString.Enabled = false;
//Hide labels
lblTables.Show();
lblViews.Show();
lbloutDir.Show();
//Hide Textboxes and list
TablesList.Show();
ViewsList.Show();
txtoutDir.Show();
//Show buttons
btnGenerate.Show();
btnReset.Show();
}
/// <summary>
/// Flushes the lists
/// </summary>
private void ClearItems()
{
// Clear the output directory textbox
txtoutDir.Text = string.Empty;
// Clear the tables and views list
TablesList.Items.Clear();
ViewsList.Items.Clear();
}
/// <summary>
/// Generate the models
/// </summary>
private void GenerateModelsFromTables(string outDir, string connString)
{
// Gets the checked tables
List<string> checkedTablesOrView = GetCheckedTablesOrViews();
foreach (var tableOrView in checkedTablesOrView)
{
string modelString = DatabaseHelper.GetModelStringFromDatabase(connString, tableOrView);
// Save the model string to output directory as .cs file
File.WriteAllText(outDir + @"\" + tableOrView + ".cs", FormatHelper.FormatModelIntoClass(modelString));
}
MessageBox.Show($"{checkedTablesOrView.Count} Models generated successfully at path {outDir}");
HideItems();
}
/// <summary>
/// Returns the list of selected tables
/// </summary>
/// <returns></returns>
private List<string> GetCheckedTablesOrViews()
{
List<string> checkdTablesOrViews = new List<string>();
// Checked tables
foreach (var item in TablesList.CheckedItems)
{
checkdTablesOrViews.Add(item.ToString());
}
// Checked views
foreach (var item in ViewsList.CheckedItems)
{
checkdTablesOrViews.Add(item.ToString());
}
return checkdTablesOrViews;
}
#endregion
}
}