如何将今天的日期与 Excel 列的日期进行比较以在 C# 中显示今天输入的数据

Question

我需要将今天的日期与 Excel 中的日期进行比较，以便它显示今天在 DataGridView 中输入的所有数据。我尝试了很多代码迭代，但继续收到错误，有些没有显示所需的结果。这是代码：

 private void todayToolStripMenuItem_Click(object sender, EventArgs e)
    {

        int day = todaysDate.Day ;
        int month =todaysDate.Month;
        MessageBox.Show("Month" + month+ "Date" + day, "abc", MessageBoxButtons.OK);
        int year = todaysDate.Year;

        String name = "Sheet1";
        OleDbConnection con = new OleDbConnection(constr);
       OleDbCommand oconn = new OleDbCommand("Select * From [" + name + "$] WHERE Date CONTAINS " + day + "AND Date CONTAINS " + month +
            "AND Date CONTAINS " + year, con);

        try
        {
            con.Open();
        }
        catch (Exception)
        {

        }

        OleDbDataAdapter sda = new OleDbDataAdapter(oconn);
        DataTable data = new DataTable();
        sda.Fill(data);
        dataGridView1.DataSource = data;
    }

提前致谢。

Answer 1

已更新使用带参数的查询而不是将值注入字符串。这对我来说很好用：

OleDbCommand oconn = new OleDbCommand("Select * From [Sheet1$] WHERE Date = @date");
oconn.Connection = connection;
try
{
    oconn.Parameters.AddWithValue("@date", DateTime.Now.ToString("MM/dd/yyyy"));
    connection.Open();
    OleDbDataAdapter sda = new OleDbDataAdapter(oconn);
    DataTable data = new DataTable();
    sda.Fill(data);
    connection.Close();
}
catch (Exception)
{

}

如何将今天的日期与 Excel 列的日期进行比较以在 C# 中显示今天输入的数据

How to compare today's date with Date of Excel column to display today's entered data in C#

c#

oledb

excel

datagridview