如何将vb.net中的日期空值传递给sql存储过程？

Dim dateValue As Object
If dateIsNull Then
    dateValue = DBNull.Value
Else
    dateValue = yourDateValue
End If

CREATE PROCEDURE yourStoredProcedure
    @yourDateParam DATETIME
AS
BEGIN
    IF @yourDateParam IS NULL
        -- 处理日期空值的情况
    ELSE
        -- 处理非空值的情况
END

Dim cmd As New SqlCommand("yourStoredProcedure", yourSqlConnection)
cmd.CommandType = CommandType.StoredProcedure

Dim param As New SqlParameter("@yourDateParam", SqlDbType.DateTime)
param.Value = dateValue
cmd.Parameters.Add(param)

Dim reader As SqlDataReader = cmd.ExecuteReader()
While reader.Read()
    ' 处理查询结果
End While
reader.Close()