C# DataGridView的日期筛选器

我需要为DataGridView制作一个日期过滤器，它通过这段代码获取数据

    DataSet dataSet = new DataSet();
    OleDbDataAdapter dataAdapter = new OleDbDataAdapter();
    OleDbDataAdapter dataAdapter1 = new OleDbDataAdapter();

    string query = "select * from Договор";
    string query1 = "select * from Поставщики";

    conn = new OleDbConnection(conn_string);

    dataAdapter.SelectCommand = new OleDbCommand(query, conn);
    dataAdapter1.SelectCommand = new OleDbCommand(query1, conn);

    dataAdapter.TableMappings.Add("Table", "Договор");
    dataAdapter1.TableMappings.Add("Table", "Поставщики");

    dataAdapter.Fill(dataSet);
    dataAdapter1.Fill(dataSet);

    BindingSource dogSource = new BindingSource();
    dogSource.DataSource = dataSet;
    dogSource.DataMember = "Договор";
    dataGridView1.DataSource = dogSource;

    BindingSource postSource = new BindingSource();
    postSource.DataSource = dataSet;
    postSource.DataMember = "Поставщики";

    DataGridViewComboBoxColumn comboColumn = new DataGridViewComboBoxColumn();
    comboColumn.HeaderText = "Поставщики";
    comboColumn.DataSource = postSource;

    comboColumn.DataPropertyName = "Код поставщика";

    comboColumn.DisplayMember = "Название";

    comboColumn.ValueMember = "Код поставщика";

我以前用这段代码过滤数据，但现在不行了，我想是因为DataSource

    DataView dv = new DataView(dt);
    dv.RowFilter = string.Format(" CONVERT([Дата заключения], 'System.DateTime') >= '{0:dd.MM.yyyy}' AND CONVERT([Дата заключения], 'System.DateTime') <= '{0:dd.MM.yyyy}'",
    dateTimePicker1.Value.ToShortDateString());;
    dataGridView1.DataSource=dv;

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我会感谢您的帮助。

我不确定这是否正确，但已经为我解决了

DataTable all = dataSet.Tables[0];
DataView dv = new DataView(all);
dv.RowFilter = string.Format(" [Дата заключения] >= '{0:dd.MM.yyyy}' AND [Дата заключения] <= '{0:dd.MM.yyyy}'", dateTimePicker1.Value.ToShortDateString());
dataGridView1.DataSource=dv;

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日期不是字符串，因此不清楚为什么必须转换аазазаачааааагаааа107。还有相当数量的其他过度杀伤力。无论如何，允许没有数据落入该范围passed@NatPongjardenlarp，是的，你是对的，不需要转换，但它仍然不起作用，甚至连头都没有了，所以这就是为什么我确信数据源字符串中存在这个问题，我不知道如何修复它。