MDB 파일 다루기

ADO.NET 를 이용하여 MDB 파일을 컨트롤 하는 예제 입니다.
데이터를 추가하고, 수정하고, 제거하는 방법을 알아보겠습니다.

전체소스WATMDB.zip

준비하기

OleDb 네임스페이스를 추가합니다.
using System.Data.OleDb;
    

    string strDBFileFullName = (System.Environment.CurrentDirectory) + “students.mdb“;
        DataTable m_dtStudent = new DataTable();
        OleDbDataAdapter m_daDataAdapter;

           OleDbConnection conn = new OleDbConnection();
            conn.ConnectionString = @”Provider=Microsoft.Jet.OLEDB.4.0;Data Source=” + strDBFileFullName;
            conn.Open();              m_daDataAdapter = new OleDbDataAdapter(“Select * From student “, conn);
            OleDbCommandBuilder m_cbCommandBuilder = new OleDbCommandBuilder(m_daDataAdapter);             m_daDataAdapter.Fill(m_dtStudent);  

데이터 추가
        Add 메소드를 이용하여 데이터를 추가합니다.

        private void btnNew_Click(object sender, EventArgs e)
        {
            DataRow drNew = m_dtStudent.NewRow();
            drNew[“NAME”] = txtName.Text;
            drNew[“MATH”] = Convert.ToInt32(txtMath.Text);             m_dtStudent.Rows.Add(drNew);
            m_daDataAdapter.Update(m_dtStudent);             RefreshStudentView();
        }

데이터 수정    

   private void btnModify_Click(object sender, EventArgs e)
        {
            if (lvwStudent.SelectedItems.Count < 1) return;
            int iSelID = Convert.ToInt32(lvwStudent.SelectedItems[0].SubItems[0].Text);             m_dtStudent.Rows[iSelID][“NAME”] = txtName.Text;
            m_dtStudent.Rows[iSelID][“MATH”] = Convert.ToInt32(txtMath.Text);
            m_daDataAdapter.Update(m_dtStudent);             RefreshStudentView();
        }

데이터 제거

        Delete 메소드를 이용하여 데이터를 제거합니다.

private void btnRemove_Click(object sender, EventArgs e)
        {
            if (lvwStudent.SelectedItems.Count < 1) return;
            int iSelID = Convert.ToInt32(lvwStudent.SelectedItems[0].SubItems[0].Text);             m_dtStudent.Rows[iSelID].Delete();
            m_daDataAdapter.Update(m_dtStudent);
            RefreshStudentView();
        }


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