比较数据库字段值和datetimepicker [英] comparing data base field values and datetimepicker

问题描述

My query is :
SELECT * FROM Table1 WHERE TblDate=DateTimePicker1.value
How to write this query in correct format

推荐答案

Plz先生，帮助我。因为我在C＃

Plz help me sir. Because I'm Bigineer in C#

中是比较粗略的

使用参数，例如：

use parameter, for example :

using (SqlConnection c = new SqlConnection("ConnectionString"))
{
    c.Open();
    using (SqlCommand cmd = new SqlCommand("SELECT * FROM Table1 WHERE TblDate=@dt"))
    {
        cmd.Parameters.AddWithValue("@dt", dateTimePicker.Value);
        using (SqlDataAdapter a = new SqlDataAdapter(cmd))
        {
            DataTable t = new DataTable();
            a.Fill(t);
        }
    }
}

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