57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.OleDb;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Database
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{
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abstract class OleDBDataGridViewHandler
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{
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protected string nameTable;
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private int idIndex;
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public OleDbDataAdapter select;
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private DataGridView dataGridView;
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protected OleDBDataGridViewHandler(OleDbCommand selectCommand, string nameTable, DataGridView dataGridView, int idIndex = 0)
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{
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this.nameTable = nameTable;
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this.idIndex = idIndex;
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select = new OleDbDataAdapter(selectCommand);
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this.dataGridView = dataGridView;
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this.dataGridView.DataSource = new DataTable();
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RefreshView();
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var lastColIndex = dataGridView.Columns.Count - 1;
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var lastColumn = dataGridView.Columns[lastColIndex];
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lastColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
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}
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protected OleDBDataGridViewHandler(string nameTable, DataGridView dataGridView, string fields = "*", int idIndex = 0)
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: this(OleDBHandler.SelectCommand(nameTable, fields), nameTable, dataGridView, idIndex)
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{ }
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protected void RefreshView()
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{
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var dataTable = this.dataGridView.DataSource as DataTable;
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dataTable.Clear();
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select.Fill(dataTable);
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}
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protected int CurrentId()
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{
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if (dataGridView.SelectedCells.Count < 1)
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return -1;
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var selectedRowIndex = dataGridView.SelectedCells[0].RowIndex;
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var value = dataGridView.Rows[selectedRowIndex].Cells[idIndex].Value;
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return Convert.ToInt32(value);
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}
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public void Delete()
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{
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int id = CurrentId();
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if (id < 0)
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return;
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OleDBHandler.Delete(nameTable, id);
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RefreshView();
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}
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}
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}
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