c# - 如何将日期从文本框插入数据库

Question

请帮助我将日期从文本框中以 dd-mm-yyyy 格式插入到 sql server。 我的代码如下:-

        int prio = Convert.ToInt32(Priority.Text);
        string stdate = planstart.Text;
        string endate= planend.Text;

        string actst = actualstart.Text;
        string acten = actualend.Text;



            SqlConnection myconnection = new SqlConnection(constring);
            SqlCommand mycommand = new SqlCommand();
            DataSet mydataset = new DataSet();
            SqlDataAdapter mydataadapter = new SqlDataAdapter();

            myconnection.Open();
            mycommand.Connection = myconnection;
            mycommand.CommandText = " insert into project_status.dbo.Project_Status_Report values('" + projectcode.Text + "','" + projectname.Text + "',(select P_Code from project_status.dbo.Project_Type where Project_Type = '" + projecttype.Text + "')," + prio + ",'" + stdate + "','" + endate + "','" + actst + "','" + acten + "','" + currentstatus.Text + "','" + remark.Text + "','no');";

            mycommand.CommandType = CommandType.Text;
            mycommand.ExecuteNonQuery();

它抛出一个异常说:- 从字符串转换日期和/或时间时转换失败。

Answer 1

您需要根据您的 sql server 格式转换数据，这样您才能解决问题..

尝试

String UrDate = "27/12/2011"; 
System.Globalization.DateTimeFormatInfo dateInfo = new System.Globalization.DateTimeFormatInfo(); 
dateInfo.ShortDatePattern = "dd/MM/yyyy"; 
DateTime validDate= Convert.ToDateTime(toDate, dateInfo); 

或

Format String For Dates

// String to DateTime
 String MyString;
 MyString = "1999-09-01 21:34 PM";
 //MyString = "1999-09-01 21:34 p.m.";  //Depends on your regional settings

 DateTime MyDateTime;
 MyDateTime = new DateTime();
 MyDateTime = DateTime.ParseExact(MyString, "yyyy-MM-dd HH:mm tt",
                                      null);

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