c# - 将 DateTimePicker 值传递给存储过程

Question

我的表单 dtp_VacationStart 和 dtp_VacationEnd 上有两个 DateTimePicker 。我想将其值传递给存储过程

我的 SQL 代码

CREATE PROC [ADD_VACATION]  @vacationStart date ,@vacationEnd date ,@vacationMem nvarchar (100) = NULL ,@idVacationKind_L int ,@idMember_L int

AS INSERT INTO [tblVacation]
           ([vacationStart]
           ,[vacationEnd]
           ,[vacationMem]
           ,[idVacationKind_L]
           ,[idMember_L])
     VALUES
           (@vacationStart
           ,@vacationEnd
           ,@vacationMem
           ,@idVacationKind_L
           ,@idMember_L)

C#代码:

public void ADD_VACATION(string vacationStart,string vacationEnd, string vacationMem, int idVacationKind_L, int idMember_L)
{

    DAL.open();

    SqlParameter[] param = new SqlParameter[5];

    param[0] = new SqlParameter("@vacationStart", SqlDbType.Date);
    param[0].Value = vacationStart;

    param[1] = new SqlParameter("@vacationEnd", SqlDbType.Date);
    param[1].Value = vacationEnd;

    param[2] = new SqlParameter("@vacationMem ", SqlDbType.NVarChar, 100);
    param[2].Value = vacationMem;

    param[3] = new SqlParameter("@idVacationKind_L", SqlDbType.Int);
    param[3].Value = idVacationKind_L;

    param[4] = new SqlParameter("@idMember_L", SqlDbType.Int);
    param[4].Value = idMember_L;

    DAL.ExecuteCommand("ADD_VACATION", param);
    DAL.close();

}

和事件

private void btnAddVacation_Click(object sender, EventArgs e)
{

    cms.ADD_VACATION( dtp_VacationStart.Text, dtp_VacationEnd.Text, txtVacationMemory.Text,
                    Convert.ToInt32(cmbVacationKind.SelectedValue)
                   ,Convert.ToInt32(dgMember_Grade.CurrentRow.Cells[0].Value.ToString()));

    MessageBox.Show("Added Successfuly", " ", MessageBoxButtons.OK, MessageBoxIcon.Information);
}

这段代码给我一个错误:输入字符串的格式不正确。

谢谢大家...抱歉混淆..这是我的第一个问题

Answer 1

你的 SqlParameter @vacationStart 是 DateTime 类型，但你给它分配了一个字符串。

您应该获取 DateTimePicker 的 DateTime 值(而不是 DateTimePicker.Text 中的字符串表示形式):

DateTime vacationStart = dtp_VacationStart.Value;

并更改ADD_VACATION的签名:

public void ADD_VACATION(DateTime vacationStart, ...

现在你可以使用它了:

private void btnAddVacation_Click(object sender, EventArgs e)
{
    DateTime vacationStart = dtp_VacationStart.Value;
    cms.ADD_VACATION(vacationStart, ...