Initial commit

2026-07-12 16:06:18 +04:00
commit 1d16eeacb2
23 changed files with 2298 additions and 0 deletions
@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.OleDb;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Database
+{
+    abstract class OleDBDataGridViewHandler
+    {
+        protected string nameTable;
+        private int idIndex;
+        public OleDbDataAdapter select;
+        private DataGridView dataGridView;
+        protected OleDBDataGridViewHandler(OleDbCommand selectCommand, string nameTable, DataGridView dataGridView, int idIndex = 0)
+        {
+            this.nameTable = nameTable;
+            this.idIndex = idIndex;
+            select = new OleDbDataAdapter(selectCommand);
+            this.dataGridView = dataGridView;
+            this.dataGridView.DataSource = new DataTable();
+            RefreshView();
+            var lastColIndex = dataGridView.Columns.Count - 1;
+            var lastColumn = dataGridView.Columns[lastColIndex];
+            lastColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+        }
+        protected OleDBDataGridViewHandler(string nameTable, DataGridView dataGridView, string fields = "*", int idIndex = 0)
+            : this(OleDBHandler.SelectCommand(nameTable, fields), nameTable, dataGridView, idIndex)
+        { }
+        protected void RefreshView()
+        {
+            var dataTable = this.dataGridView.DataSource as DataTable;
+            dataTable.Clear();
+            select.Fill(dataTable);
+        }
+        protected int CurrentId()
+        {
+            if (dataGridView.SelectedCells.Count < 1)
+                return -1;
+            var selectedRowIndex = dataGridView.SelectedCells[0].RowIndex;
+            var value = dataGridView.Rows[selectedRowIndex].Cells[idIndex].Value;
+            return Convert.ToInt32(value);
+        }
+        public void Delete()
+        {
+            int id = CurrentId();
+            if (id < 0)
+                return;
+            OleDBHandler.Delete(nameTable, id);
+            RefreshView();
+        }
+    }
+}